Updated

node_modules/google-gax/build/src/apiCaller.d.ts

@@ -0,0 +1,21 @@
+import { APICallback, CancellableStream, GRPCCall, ResultTuple, SimpleCallbackFunction } from './apitypes';
+import { CancellablePromise, OngoingCall, OngoingCallPromise } from './call';
+import { Descriptor } from './descriptor';
+import { CallSettings } from './gax';
+import { GoogleError } from './googleError';
+import { StreamProxy } from './streamingCalls/streaming';
+export interface ApiCallerSettings {
+    promise: PromiseConstructor;
+}
+/**
+ * An interface for all kinds of API callers (normal, that just calls API, and
+ * all special ones: long-running, paginated, bundled, streaming).
+ */
+export interface APICaller {
+    init(settings: ApiCallerSettings, callback?: APICallback): OngoingCallPromise | OngoingCall | StreamProxy;
+    wrap(func: GRPCCall): GRPCCall;
+    call(apiCall: SimpleCallbackFunction, argument: {}, settings: {}, canceller: OngoingCallPromise | OngoingCall | StreamProxy): void;
+    fail(canceller: OngoingCallPromise | OngoingCall | CancellableStream, err: GoogleError): void;
+    result(canceller: OngoingCallPromise | OngoingCall | CancellableStream): CancellablePromise<ResultTuple> | CancellableStream;
+}
+export declare function createAPICaller(settings: CallSettings, descriptor: Descriptor | undefined): APICaller;

node_modules/google-gax/build/src/apiCaller.js

@@ -0,0 +1,41 @@
+"use strict";
+/*
+ * Copyright 2019, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const normalApiCaller_1 = require("./normalCalls/normalApiCaller");
+function createAPICaller(settings, descriptor) {
+    if (!descriptor) {
+        return new normalApiCaller_1.NormalApiCaller();
+    }
+    return descriptor.getApiCaller(settings);
+}
+exports.createAPICaller = createAPICaller;
+//# sourceMappingURL=apiCaller.js.map

node_modules/google-gax/build/src/apiCaller.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"apiCaller.js","sourceRoot":"","sources":["../../src/apiCaller.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAaH,mEAA8D;AAgC9D,SAAgB,eAAe,CAC7B,QAAsB,EACtB,UAAkC;IAElC,IAAI,CAAC,UAAU,EAAE;QACf,OAAO,IAAI,iCAAe,EAAE,CAAC;KAC9B;IACD,OAAO,UAAU,CAAC,YAAY,CAAC,QAAQ,CAAC,CAAC;AAC3C,CAAC;AARD,0CAQC"}

node_modules/google-gax/build/src/apitypes.d.ts

@@ -0,0 +1,44 @@
+/// <reference types="node" />
+import { Duplex } from 'stream';
+import { CancellablePromise } from './call';
+import { CallOptions } from './gax';
+import { GoogleError } from './googleError';
+import { Operation } from './longRunningCalls/longrunning';
+export interface GRPCCallResult {
+    cancel(): void;
+}
+export interface RequestType {
+}
+export declare type ResponseType = {} | null;
+export declare type NextPageRequestType = {
+    [index: string]: string;
+} | null;
+export declare type RawResponseType = Operation | {};
+export declare type ResultTuple = [ResponseType, NextPageRequestType | undefined, RawResponseType | undefined];
+export interface SimpleCallbackFunction {
+    (argument: RequestType, callback: APICallback): GRPCCallResult;
+}
+export declare type APICallback = (err: GoogleError | null, response?: ResponseType, next?: NextPageRequestType, rawResponse?: RawResponseType) => void;
+export declare type UnaryCall = (argument: {}, metadata: {}, options: {}, callback: APICallback) => GRPCCallResult;
+export declare type ServerStreamingCall = (argument: {}, metadata: {}, options: {}) => Duplex & GRPCCallResult;
+export declare type ClientStreamingCall = (metadata: {}, options: {}, callback?: APICallback) => Duplex & GRPCCallResult;
+export declare type BiDiStreamingCall = (metadata: {}, options: {}) => Duplex & GRPCCallResult;
+export declare type GRPCCall = UnaryCall | ServerStreamingCall | ClientStreamingCall | BiDiStreamingCall;
+export declare type CancellableStream = Duplex & GRPCCallResult;
+export declare type GaxCallResult = CancellablePromise<ResultTuple> | CancellableStream;
+export interface GaxCallPromise {
+    (argument: {}, callOptions?: CallOptions, callback?: APICallback): CancellablePromise<ResultTuple>;
+}
+export interface GaxCallStream {
+    (argument: {}, callOptions?: CallOptions, callback?: APICallback): CancellableStream;
+}
+export interface GaxCall {
+    (argument: {}, callOptions?: CallOptions, callback?: APICallback): GaxCallResult;
+}
+export interface GRPCCallOtherArgs {
+    options?: {
+        deadline?: Date;
+    };
+    headers?: {};
+    metadataBuilder: (abTests?: {}, headers?: {}) => {};
+}

node_modules/google-gax/build/src/apitypes.js

@@ -0,0 +1,33 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=apitypes.js.map

node_modules/google-gax/build/src/apitypes.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"apitypes.js","sourceRoot":"","sources":["../../src/apitypes.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG"}

node_modules/google-gax/build/src/bundlingCalls/bundleApiCaller.d.ts

@@ -0,0 +1,21 @@
+import { APICaller, ApiCallerSettings } from '../apiCaller';
+import { APICallback, GRPCCall, SimpleCallbackFunction } from '../apitypes';
+import { OngoingCall, OngoingCallPromise } from '../call';
+import { CallSettings } from '../gax';
+import { GoogleError } from '../googleError';
+import { BundleExecutor } from './bundleExecutor';
+/**
+ * An implementation of APICaller for bundled calls.
+ * Uses BundleExecutor to do bundling.
+ */
+export declare class BundleApiCaller implements APICaller {
+    bundler: BundleExecutor;
+    constructor(bundler: BundleExecutor);
+    init(settings: ApiCallerSettings, callback?: APICallback): OngoingCallPromise | OngoingCall;
+    wrap(func: GRPCCall): GRPCCall;
+    call(apiCall: SimpleCallbackFunction, argument: {}, settings: CallSettings, status: OngoingCallPromise): void;
+    fail(canceller: OngoingCallPromise, err: GoogleError): void;
+    result(canceller: OngoingCallPromise): import("../call").CancellablePromise<[import("../apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import("..").Operation | undefined]>;
+}

node_modules/google-gax/build/src/bundlingCalls/bundleApiCaller.js

@@ -0,0 +1,69 @@
+"use strict";
+/*
+ * Copyright 2019, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const call_1 = require("../call");
+const googleError_1 = require("../googleError");
+/**
+ * An implementation of APICaller for bundled calls.
+ * Uses BundleExecutor to do bundling.
+ */
+class BundleApiCaller {
+    constructor(bundler) {
+        this.bundler = bundler;
+    }
+    init(settings, callback) {
+        if (callback) {
+            return new call_1.OngoingCall(callback);
+        }
+        return new call_1.OngoingCallPromise(settings.promise);
+    }
+    wrap(func) {
+        return func;
+    }
+    call(apiCall, argument, settings, status) {
+        if (!settings.isBundling) {
+            throw new googleError_1.GoogleError('Bundling enabled with no isBundling!');
+        }
+        status.call((argument, callback) => {
+            this.bundler.schedule(apiCall, argument, callback);
+            return status;
+        }, argument);
+    }
+    fail(canceller, err) {
+        canceller.callback(err);
+    }
+    result(canceller) {
+        return canceller.promise;
+    }
+}
+exports.BundleApiCaller = BundleApiCaller;
+//# sourceMappingURL=bundleApiCaller.js.map

node_modules/google-gax/build/src/bundlingCalls/bundleApiCaller.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/bundlingCalls/bundleDescriptor.d.ts

@@ -0,0 +1,42 @@
+import { Descriptor } from '../descriptor';
+import { CallSettings } from '../gax';
+import { NormalApiCaller } from '../normalCalls/normalApiCaller';
+import { BundleApiCaller } from './bundleApiCaller';
+/**
+ * A descriptor for calls that can be bundled into one call.
+ */
+export declare class BundleDescriptor implements Descriptor {
+    bundledField: string;
+    requestDiscriminatorFields: string[];
+    subresponseField: string | null;
+    byteLengthFunction: Function;
+    /**
+     * Describes the structure of bundled call.
+     *
+     * requestDiscriminatorFields may include '.' as a separator, which is used to
+     * indicate object traversal. This allows fields in nested objects to be used
+     * to determine what request to bundle.
+     *
+     * @property {String} bundledField
+     * @property {String} requestDiscriminatorFields
+     * @property {String} subresponseField
+     * @property {Function} byteLengthFunction
+     *
+     * @param {String} bundledField - the repeated field in the request message
+     *   that will have its elements aggregated by bundling.
+     * @param {String} requestDiscriminatorFields - a list of fields in the
+     *   target request message class that are used to detemrine which request
+     *   messages should be bundled together.
+     * @param {String} subresponseField - an optional field, when present it
+     *   indicates the field in the response message that should be used to
+     *   demultiplex the response into multiple response messages.
+     * @param {Function} byteLengthFunction - a function to obtain the byte
+     *   length to be consumed for the bundled field messages. Because Node.JS
+     *   protobuf.js/gRPC uses builtin Objects for the user-visible data and
+     *   internally they are encoded/decoded in protobuf manner, this function
+     *   is actually necessary to calculate the byte length.
+     * @constructor
+     */
+    constructor(bundledField: string, requestDiscriminatorFields: string[], subresponseField: string | null, byteLengthFunction: Function);
+    getApiCaller(settings: CallSettings): NormalApiCaller | BundleApiCaller;
+}

node_modules/google-gax/build/src/bundlingCalls/bundleDescriptor.js

@@ -0,0 +1,85 @@
+"use strict";
+/*
+ * Copyright 2019, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const normalApiCaller_1 = require("../normalCalls/normalApiCaller");
+const bundleApiCaller_1 = require("./bundleApiCaller");
+const bundleExecutor_1 = require("./bundleExecutor");
+/**
+ * A descriptor for calls that can be bundled into one call.
+ */
+class BundleDescriptor {
+    /**
+     * Describes the structure of bundled call.
+     *
+     * requestDiscriminatorFields may include '.' as a separator, which is used to
+     * indicate object traversal. This allows fields in nested objects to be used
+     * to determine what request to bundle.
+     *
+     * @property {String} bundledField
+     * @property {String} requestDiscriminatorFields
+     * @property {String} subresponseField
+     * @property {Function} byteLengthFunction
+     *
+     * @param {String} bundledField - the repeated field in the request message
+     *   that will have its elements aggregated by bundling.
+     * @param {String} requestDiscriminatorFields - a list of fields in the
+     *   target request message class that are used to detemrine which request
+     *   messages should be bundled together.
+     * @param {String} subresponseField - an optional field, when present it
+     *   indicates the field in the response message that should be used to
+     *   demultiplex the response into multiple response messages.
+     * @param {Function} byteLengthFunction - a function to obtain the byte
+     *   length to be consumed for the bundled field messages. Because Node.JS
+     *   protobuf.js/gRPC uses builtin Objects for the user-visible data and
+     *   internally they are encoded/decoded in protobuf manner, this function
+     *   is actually necessary to calculate the byte length.
+     * @constructor
+     */
+    constructor(bundledField, requestDiscriminatorFields, subresponseField, byteLengthFunction) {
+        if (!byteLengthFunction && typeof subresponseField === 'function') {
+            byteLengthFunction = subresponseField;
+            subresponseField = null;
+        }
+        this.bundledField = bundledField;
+        this.requestDiscriminatorFields = requestDiscriminatorFields;
+        this.subresponseField = subresponseField;
+        this.byteLengthFunction = byteLengthFunction;
+    }
+    getApiCaller(settings) {
+        if (settings.isBundling === false) {
+            return new normalApiCaller_1.NormalApiCaller();
+        }
+        return new bundleApiCaller_1.BundleApiCaller(new bundleExecutor_1.BundleExecutor(settings.bundleOptions, this));
+    }
+}
+exports.BundleDescriptor = BundleDescriptor;
+//# sourceMappingURL=bundleDescriptor.js.map

node_modules/google-gax/build/src/bundlingCalls/bundleDescriptor.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"bundleDescriptor.js","sourceRoot":"","sources":["../../../src/bundlingCalls/bundleDescriptor.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAIH,oEAA+D;AAE/D,uDAAkD;AAClD,qDAAgD;AAEhD;;GAEG;AACH,MAAa,gBAAgB;IAM3B;;;;;;;;;;;;;;;;;;;;;;;;;;OA0BG;IACH,YACE,YAAoB,EACpB,0BAAoC,EACpC,gBAA+B,EAC/B,kBAA4B;QAE5B,IAAI,CAAC,kBAAkB,IAAI,OAAO,gBAAgB,KAAK,UAAU,EAAE;YACjE,kBAAkB,GAAG,gBAAgB,CAAC;YACtC,gBAAgB,GAAG,IAAI,CAAC;SACzB;QACD,IAAI,CAAC,YAAY,GAAG,YAAY,CAAC;QACjC,IAAI,CAAC,0BAA0B,GAAG,0BAA0B,CAAC;QAC7D,IAAI,CAAC,gBAAgB,GAAG,gBAAgB,CAAC;QACzC,IAAI,CAAC,kBAAkB,GAAG,kBAAkB,CAAC;IAC/C,CAAC;IAED,YAAY,CAAC,QAAsB;QACjC,IAAI,QAAQ,CAAC,UAAU,KAAK,KAAK,EAAE;YACjC,OAAO,IAAI,iCAAe,EAAE,CAAC;SAC9B;QACD,OAAO,IAAI,iCAAe,CACxB,IAAI,+BAAc,CAAC,QAAQ,CAAC,aAAc,EAAE,IAAI,CAAC,CAClD,CAAC;IACJ,CAAC;CACF;AAzDD,4CAyDC"}

node_modules/google-gax/build/src/bundlingCalls/bundleExecutor.d.ts

@@ -0,0 +1,73 @@
+import { SimpleCallbackFunction } from '../apitypes';
+import { BundleDescriptor } from './bundleDescriptor';
+import { Task, TaskCallback } from './task';
+export interface BundleOptions {
+    elementCountLimit: number;
+    requestByteLimit: number;
+    elementCountThreshold: number;
+    requestByteThreshold: number;
+    delayThreshold: number;
+}
+/**
+ * BundleExecutor stores several timers for each bundle (calls are bundled based
+ * on the options passed, each bundle has unique ID that is calculated based on
+ * field values). Each timer fires and sends a call after certain amount of
+ * time, and if a new request comes to the same bundle, the timer can be
+ * restarted.
+ */
+export declare class BundleExecutor {
+    _options: BundleOptions;
+    _descriptor: BundleDescriptor;
+    _tasks: {
+        [index: string]: Task;
+    };
+    _timers: {
+        [index: string]: ReturnType<typeof setTimeout>;
+    };
+    _invocations: {
+        [index: string]: string;
+    };
+    _invocationId: number;
+    /**
+     * Organizes requests for an api service that requires to bundle them.
+     *
+     * @param {BundleOptions} bundleOptions - configures strategy this instance
+     *   uses when executing bundled functions.
+     * @param {BundleDescriptor} bundleDescriptor - the description of the bundling.
+     * @constructor
+     */
+    constructor(bundleOptions: BundleOptions, bundleDescriptor: BundleDescriptor);
+    /**
+     * Schedule a method call.
+     *
+     * @param {function} apiCall - the function for an API call.
+     * @param {Object} request - the request object to be bundled with others.
+     * @param {APICallback} callback - the callback to be called when the method finished.
+     * @return {function()} - the function to cancel the scheduled invocation.
+     */
+    schedule(apiCall: SimpleCallbackFunction, request: {
+        [index: string]: Array<{}> | string;
+    }, callback?: TaskCallback): import("../apitypes").GRPCCallResult;
+    /**
+     * Clears scheduled timeout if it exists.
+     *
+     * @param {String} bundleId - the id for the task whose timeout needs to be
+     *   cleared.
+     * @private
+     */
+    private _maybeClearTimeout;
+    /**
+     * Cancels an event.
+     *
+     * @param {String} id - The id for the event in the task.
+     * @private
+     */
+    private _cancel;
+    /**
+     * Invokes a task.
+     *
+     * @param {String} bundleId - The id for the task.
+     * @private
+     */
+    _runNow(bundleId: string): void;
+}

node_modules/google-gax/build/src/bundlingCalls/bundleExecutor.js

@@ -0,0 +1,208 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const status_1 = require("../status");
+const googleError_1 = require("../googleError");
+const warnings_1 = require("../warnings");
+const bundlingUtils_1 = require("./bundlingUtils");
+const task_1 = require("./task");
+function noop() { }
+/**
+ * BundleExecutor stores several timers for each bundle (calls are bundled based
+ * on the options passed, each bundle has unique ID that is calculated based on
+ * field values). Each timer fires and sends a call after certain amount of
+ * time, and if a new request comes to the same bundle, the timer can be
+ * restarted.
+ */
+class BundleExecutor {
+    /**
+     * Organizes requests for an api service that requires to bundle them.
+     *
+     * @param {BundleOptions} bundleOptions - configures strategy this instance
+     *   uses when executing bundled functions.
+     * @param {BundleDescriptor} bundleDescriptor - the description of the bundling.
+     * @constructor
+     */
+    constructor(bundleOptions, bundleDescriptor) {
+        this._options = bundleOptions;
+        this._descriptor = bundleDescriptor;
+        this._tasks = {};
+        this._timers = {};
+        this._invocations = {};
+        this._invocationId = 0;
+    }
+    /**
+     * Schedule a method call.
+     *
+     * @param {function} apiCall - the function for an API call.
+     * @param {Object} request - the request object to be bundled with others.
+     * @param {APICallback} callback - the callback to be called when the method finished.
+     * @return {function()} - the function to cancel the scheduled invocation.
+     */
+    schedule(apiCall, request, callback) {
+        const bundleId = bundlingUtils_1.computeBundleId(request, this._descriptor.requestDiscriminatorFields);
+        callback = (callback || noop);
+        if (bundleId === undefined) {
+            warnings_1.warn('bundling_schedule_bundleid_undefined', 'The request does not have enough information for request bundling. ' +
+                `Invoking immediately. Request: ${JSON.stringify(request)} ` +
+                `discriminator fields: ${this._descriptor.requestDiscriminatorFields}`);
+            return apiCall(request, callback);
+        }
+        if (request[this._descriptor.bundledField] === undefined) {
+            warnings_1.warn('bundling_no_bundled_field', `Request does not contain field ${this._descriptor.bundledField} that must present for bundling. ` +
+                `Invoking immediately. Request: ${JSON.stringify(request)}`);
+            return apiCall(request, callback);
+        }
+        if (!(bundleId in this._tasks)) {
+            this._tasks[bundleId] = new task_1.Task(apiCall, request, this._descriptor.bundledField, this._descriptor.subresponseField);
+        }
+        let task = this._tasks[bundleId];
+        callback.id = String(this._invocationId++);
+        this._invocations[callback.id] = bundleId;
+        const bundledField = request[this._descriptor.bundledField];
+        const elementCount = bundledField.length;
+        let requestBytes = 0;
+        const self = this;
+        bundledField.forEach(obj => {
+            requestBytes += this._descriptor.byteLengthFunction(obj);
+        });
+        const countLimit = this._options.elementCountLimit || 0;
+        const byteLimit = this._options.requestByteLimit || 0;
+        if ((countLimit > 0 && elementCount > countLimit) ||
+            (byteLimit > 0 && requestBytes >= byteLimit)) {
+            let message;
+            if (countLimit > 0 && elementCount > countLimit) {
+                message =
+                    'The number of elements ' +
+                        elementCount +
+                        ' exceeds the limit ' +
+                        this._options.elementCountLimit;
+            }
+            else {
+                message =
+                    'The required bytes ' +
+                        requestBytes +
+                        ' exceeds the limit ' +
+                        this._options.requestByteLimit;
+            }
+            const error = new googleError_1.GoogleError(message);
+            error.code = status_1.Status.INVALID_ARGUMENT;
+            callback(error);
+            return {
+                cancel: noop,
+            };
+        }
+        const existingCount = task.getElementCount();
+        const existingBytes = task.getRequestByteSize();
+        if ((countLimit > 0 && elementCount + existingCount >= countLimit) ||
+            (byteLimit > 0 && requestBytes + existingBytes >= byteLimit)) {
+            this._runNow(bundleId);
+            this._tasks[bundleId] = new task_1.Task(apiCall, request, this._descriptor.bundledField, this._descriptor.subresponseField);
+            task = this._tasks[bundleId];
+        }
+        task.extend(bundledField, requestBytes, callback);
+        const ret = {
+            cancel() {
+                self._cancel(callback.id);
+            },
+        };
+        const countThreshold = this._options.elementCountThreshold || 0;
+        const sizeThreshold = this._options.requestByteThreshold || 0;
+        if ((countThreshold > 0 && task.getElementCount() >= countThreshold) ||
+            (sizeThreshold > 0 && task.getRequestByteSize() >= sizeThreshold)) {
+            this._runNow(bundleId);
+            return ret;
+        }
+        if (!(bundleId in this._timers) && this._options.delayThreshold > 0) {
+            this._timers[bundleId] = setTimeout(() => {
+                delete this._timers[bundleId];
+                this._runNow(bundleId);
+            }, this._options.delayThreshold);
+        }
+        return ret;
+    }
+    /**
+     * Clears scheduled timeout if it exists.
+     *
+     * @param {String} bundleId - the id for the task whose timeout needs to be
+     *   cleared.
+     * @private
+     */
+    _maybeClearTimeout(bundleId) {
+        if (bundleId in this._timers) {
+            const timerId = this._timers[bundleId];
+            delete this._timers[bundleId];
+            clearTimeout(timerId);
+        }
+    }
+    /**
+     * Cancels an event.
+     *
+     * @param {String} id - The id for the event in the task.
+     * @private
+     */
+    _cancel(id) {
+        if (!(id in this._invocations)) {
+            return;
+        }
+        const bundleId = this._invocations[id];
+        if (!(bundleId in this._tasks)) {
+            return;
+        }
+        const task = this._tasks[bundleId];
+        delete this._invocations[id];
+        if (task.cancel(id)) {
+            this._maybeClearTimeout(bundleId);
+            delete this._tasks[bundleId];
+        }
+    }
+    /**
+     * Invokes a task.
+     *
+     * @param {String} bundleId - The id for the task.
+     * @private
+     */
+    _runNow(bundleId) {
+        if (!(bundleId in this._tasks)) {
+            warnings_1.warn('bundle_runnow_bundleid_unknown', `No such bundleid: ${bundleId}`);
+            return;
+        }
+        this._maybeClearTimeout(bundleId);
+        const task = this._tasks[bundleId];
+        delete this._tasks[bundleId];
+        task.run().forEach(id => {
+            delete this._invocations[id];
+        });
+    }
+}
+exports.BundleExecutor = BundleExecutor;
+//# sourceMappingURL=bundleExecutor.js.map

node_modules/google-gax/build/src/bundlingCalls/bundlingUtils.d.ts

@@ -0,0 +1,13 @@
+import { RequestType } from '../apitypes';
+/**
+ * Compute the identifier of the `obj`. The objects of the same ID
+ * will be bundled together.
+ *
+ * @param {RequestType} obj - The request object.
+ * @param {String[]} discriminatorFields - The array of field names.
+ *   A field name may include '.' as a separator, which is used to
+ *   indicate object traversal.
+ * @return {String|undefined} - the identifier string, or undefined if any
+ *   discriminator fields do not exist.
+ */
+export declare function computeBundleId(obj: RequestType, discriminatorFields: string[]): string | undefined;

node_modules/google-gax/build/src/bundlingCalls/bundlingUtils.js

@@ -0,0 +1,68 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Provides behavior that supports request bundling.
+ */
+const at = require("lodash.at");
+/**
+ * Compute the identifier of the `obj`. The objects of the same ID
+ * will be bundled together.
+ *
+ * @param {RequestType} obj - The request object.
+ * @param {String[]} discriminatorFields - The array of field names.
+ *   A field name may include '.' as a separator, which is used to
+ *   indicate object traversal.
+ * @return {String|undefined} - the identifier string, or undefined if any
+ *   discriminator fields do not exist.
+ */
+function computeBundleId(obj, discriminatorFields) {
+    const ids = [];
+    let hasIds = false;
+    for (let i = 0; i < discriminatorFields.length; ++i) {
+        // @ts-ignore lodash.at types
+        const id = at(obj, discriminatorFields[i])[0];
+        if (id === undefined) {
+            ids.push(null);
+        }
+        else {
+            hasIds = true;
+            ids.push(id);
+        }
+    }
+    if (!hasIds) {
+        return undefined;
+    }
+    return JSON.stringify(ids);
+}
+exports.computeBundleId = computeBundleId;
+//# sourceMappingURL=bundlingUtils.js.map

node_modules/google-gax/build/src/bundlingCalls/bundlingUtils.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/bundlingCalls/task.d.ts

@@ -0,0 +1,85 @@
+import { APICallback, GRPCCallResult, SimpleCallbackFunction } from '../apitypes';
+export interface SubResponseInfo {
+    field: string;
+    start?: number;
+    end?: number;
+}
+export interface TaskElement {
+}
+export interface TaskData {
+    elements: TaskElement[];
+    bytes: number;
+    callback: TaskCallback;
+    cancelled?: boolean;
+}
+export interface TaskCallback extends APICallback {
+    id?: string;
+}
+/**
+ * Creates a deep copy of the object with the consideration of subresponse
+ * fields for bundling.
+ *
+ * @param {Object} obj - The source object.
+ * @param {Object?} subresponseInfo - The information to copy the subset of
+ *   the field for the response. Do nothing if it's null.
+ * @param {String} subresponseInfo.field - The field name.
+ * @param {number} subresponseInfo.start - The offset where the copying
+ *   element should starts with.
+ * @param {number} subresponseInfo.end - The ending index where the copying
+ *   region of the elements ends.
+ * @return {Object} The copied object.
+ * @private
+ */
+export declare function deepCopyForResponse(obj: any, subresponseInfo: SubResponseInfo | null): any;
+export declare class Task {
+    _apiCall: SimpleCallbackFunction;
+    _request: {
+        [index: string]: TaskElement[];
+    };
+    _bundledField: string;
+    _subresponseField?: string | null;
+    _data: TaskData[];
+    callCanceller?: GRPCCallResult;
+    /**
+     * A task coordinates the execution of a single bundle.
+     *
+     * @param {function} apiCall - The function to conduct calling API.
+     * @param {Object} bundlingRequest - The base request object to be used
+     *   for the actual API call.
+     * @param {string} bundledField - The name of the field in bundlingRequest
+     *   to be bundled.
+     * @param {string=} subresponseField - The name of the field in the response
+     *   to be passed to the callback.
+     * @constructor
+     * @private
+     */
+    constructor(apiCall: SimpleCallbackFunction, bundlingRequest: {}, bundledField: string, subresponseField?: string | null);
+    /**
+     * Returns the number of elements in a task.
+     * @return {number} The number of elements.
+     */
+    getElementCount(): number;
+    /**
+     * Returns the total byte size of the elements in a task.
+     * @return {number} The byte size.
+     */
+    getRequestByteSize(): number;
+    /**
+     * Invokes the actual API call with current elements.
+     * @return {string[]} - the list of ids for invocations to be run.
+     */
+    run(): string[];
+    /**
+     * Appends the list of elements into the task.
+     * @param {Object[]} elements - the new list of elements.
+     * @param {number} bytes - the byte size required to encode elements in the API.
+     * @param {APICallback} callback - the callback of the method call.
+     */
+    extend(elements: TaskElement[], bytes: number, callback: TaskCallback): void;
+    /**
+     * Cancels a part of elements.
+     * @param {string} id - The identifier of the part of elements.
+     * @return {boolean} Whether the entire task will be canceled or not.
+     */
+    cancel(id: string): boolean;
+}

node_modules/google-gax/build/src/bundlingCalls/task.js

@@ -0,0 +1,241 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const status_1 = require("../status");
+const googleError_1 = require("../googleError");
+/**
+ * Creates a deep copy of the object with the consideration of subresponse
+ * fields for bundling.
+ *
+ * @param {Object} obj - The source object.
+ * @param {Object?} subresponseInfo - The information to copy the subset of
+ *   the field for the response. Do nothing if it's null.
+ * @param {String} subresponseInfo.field - The field name.
+ * @param {number} subresponseInfo.start - The offset where the copying
+ *   element should starts with.
+ * @param {number} subresponseInfo.end - The ending index where the copying
+ *   region of the elements ends.
+ * @return {Object} The copied object.
+ * @private
+ */
+function deepCopyForResponse(
+// tslint:disable-next-line no-any
+obj, subresponseInfo) {
+    // tslint:disable-next-line no-any
+    let result;
+    if (obj === null) {
+        return null;
+    }
+    if (obj === undefined) {
+        return undefined;
+    }
+    if (Array.isArray(obj)) {
+        result = [];
+        obj.forEach(element => {
+            result.push(deepCopyForResponse(element, null));
+        });
+        return result;
+    }
+    // Some objects (such as ByteBuffer) have copy method.
+    if (obj.copy !== undefined) {
+        return obj.copy();
+    }
+    // ArrayBuffer should be copied through slice().
+    if (obj instanceof ArrayBuffer) {
+        return obj.slice(0);
+    }
+    if (typeof obj === 'object') {
+        result = {};
+        Object.keys(obj).forEach(key => {
+            if (subresponseInfo &&
+                key === subresponseInfo.field &&
+                Array.isArray(obj[key])) {
+                // Note that subresponses are not deep-copied. This is safe because
+                // those subresponses are not shared among callbacks.
+                result[key] = obj[key].slice(subresponseInfo.start, subresponseInfo.end);
+            }
+            else {
+                result[key] = deepCopyForResponse(obj[key], null);
+            }
+        });
+        return result;
+    }
+    return obj;
+}
+exports.deepCopyForResponse = deepCopyForResponse;
+class Task {
+    /**
+     * A task coordinates the execution of a single bundle.
+     *
+     * @param {function} apiCall - The function to conduct calling API.
+     * @param {Object} bundlingRequest - The base request object to be used
+     *   for the actual API call.
+     * @param {string} bundledField - The name of the field in bundlingRequest
+     *   to be bundled.
+     * @param {string=} subresponseField - The name of the field in the response
+     *   to be passed to the callback.
+     * @constructor
+     * @private
+     */
+    constructor(apiCall, bundlingRequest, bundledField, subresponseField) {
+        this._apiCall = apiCall;
+        this._request = bundlingRequest;
+        this._bundledField = bundledField;
+        this._subresponseField = subresponseField;
+        this._data = [];
+    }
+    /**
+     * Returns the number of elements in a task.
+     * @return {number} The number of elements.
+     */
+    getElementCount() {
+        let count = 0;
+        for (let i = 0; i < this._data.length; ++i) {
+            count += this._data[i].elements.length;
+        }
+        return count;
+    }
+    /**
+     * Returns the total byte size of the elements in a task.
+     * @return {number} The byte size.
+     */
+    getRequestByteSize() {
+        let size = 0;
+        for (let i = 0; i < this._data.length; ++i) {
+            size += this._data[i].bytes;
+        }
+        return size;
+    }
+    /**
+     * Invokes the actual API call with current elements.
+     * @return {string[]} - the list of ids for invocations to be run.
+     */
+    run() {
+        if (this._data.length === 0) {
+            return [];
+        }
+        const request = this._request;
+        const elements = [];
+        const ids = [];
+        for (let i = 0; i < this._data.length; ++i) {
+            elements.push.apply(elements, this._data[i].elements);
+            ids.push(this._data[i].callback.id);
+        }
+        request[this._bundledField] = elements;
+        const self = this;
+        this.callCanceller = this._apiCall(request, (err, response) => {
+            const responses = [];
+            if (err) {
+                self._data.forEach(() => {
+                    responses.push(undefined);
+                });
+            }
+            else {
+                let subresponseInfo = null;
+                if (self._subresponseField) {
+                    subresponseInfo = {
+                        field: self._subresponseField,
+                        start: 0,
+                    };
+                }
+                self._data.forEach(data => {
+                    if (subresponseInfo) {
+                        subresponseInfo.end =
+                            subresponseInfo.start + data.elements.length;
+                    }
+                    responses.push(deepCopyForResponse(response, subresponseInfo));
+                    if (subresponseInfo) {
+                        subresponseInfo.start = subresponseInfo.end;
+                    }
+                });
+            }
+            for (let i = 0; i < self._data.length; ++i) {
+                if (self._data[i].cancelled) {
+                    const error = new googleError_1.GoogleError('cancelled');
+                    error.code = status_1.Status.CANCELLED;
+                    self._data[i].callback(error);
+                }
+                else {
+                    self._data[i].callback(err, responses[i]);
+                }
+            }
+        });
+        return ids;
+    }
+    /**
+     * Appends the list of elements into the task.
+     * @param {Object[]} elements - the new list of elements.
+     * @param {number} bytes - the byte size required to encode elements in the API.
+     * @param {APICallback} callback - the callback of the method call.
+     */
+    extend(elements, bytes, callback) {
+        this._data.push({
+            elements,
+            bytes,
+            callback,
+        });
+    }
+    /**
+     * Cancels a part of elements.
+     * @param {string} id - The identifier of the part of elements.
+     * @return {boolean} Whether the entire task will be canceled or not.
+     */
+    cancel(id) {
+        if (this.callCanceller) {
+            let allCancelled = true;
+            this._data.forEach(d => {
+                if (d.callback.id === id) {
+                    d.cancelled = true;
+                }
+                if (!d.cancelled) {
+                    allCancelled = false;
+                }
+            });
+            if (allCancelled) {
+                this.callCanceller.cancel();
+            }
+            return allCancelled;
+        }
+        for (let i = 0; i < this._data.length; ++i) {
+            if (this._data[i].callback.id === id) {
+                const error = new googleError_1.GoogleError('cancelled');
+                error.code = status_1.Status.CANCELLED;
+                this._data[i].callback(error);
+                this._data.splice(i, 1);
+                break;
+            }
+        }
+        return this._data.length === 0;
+    }
+}
+exports.Task = Task;
+//# sourceMappingURL=task.js.map

node_modules/google-gax/build/src/call.d.ts

@@ -0,0 +1,47 @@
+import { APICallback, RequestType, ResultTuple, SimpleCallbackFunction } from './apitypes';
+export declare class OngoingCall {
+    callback?: APICallback;
+    cancelFunc?: () => void;
+    completed: boolean;
+    /**
+     * OngoingCall manages callback, API calls, and cancellation
+     * of the API calls.
+     * @param {APICallback=} callback
+     *   The callback to be called asynchronously when the API call
+     *   finishes.
+     * @constructor
+     * @property {APICallback} callback
+     *   The callback function to be called.
+     * @private
+     */
+    constructor(callback?: APICallback);
+    /**
+     * Cancels the ongoing promise.
+     */
+    cancel(): void;
+    /**
+     * Call calls the specified function. Result will be used to fulfill
+     * the promise.
+     *
+     * @param {SimpleCallbackFunction} func
+     *   A function for an API call.
+     * @param {Object} argument
+     *   A request object.
+     */
+    call(func: SimpleCallbackFunction, argument: RequestType): void;
+}
+export interface CancellablePromise<T> extends Promise<T> {
+    cancel(): void;
+}
+export declare class OngoingCallPromise extends OngoingCall {
+    promise: CancellablePromise<ResultTuple>;
+    /**
+     * GaxPromise is GRPCCallbackWrapper, but it holds a promise when
+     * the API call finishes.
+     * @param {Function} PromiseCtor - A constructor for a promise that implements
+     * the ES6 specification of promise.
+     * @constructor
+     * @private
+     */
+    constructor(PromiseCtor: PromiseConstructor);
+}

node_modules/google-gax/build/src/call.js

@@ -0,0 +1,121 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const status_1 = require("./status");
+const googleError_1 = require("./googleError");
+class OngoingCall {
+    /**
+     * OngoingCall manages callback, API calls, and cancellation
+     * of the API calls.
+     * @param {APICallback=} callback
+     *   The callback to be called asynchronously when the API call
+     *   finishes.
+     * @constructor
+     * @property {APICallback} callback
+     *   The callback function to be called.
+     * @private
+     */
+    constructor(callback) {
+        this.callback = callback;
+        this.completed = false;
+    }
+    /**
+     * Cancels the ongoing promise.
+     */
+    cancel() {
+        if (this.completed) {
+            return;
+        }
+        this.completed = true;
+        if (this.cancelFunc) {
+            this.cancelFunc();
+        }
+        else {
+            const error = new googleError_1.GoogleError('cancelled');
+            error.code = status_1.Status.CANCELLED;
+            this.callback(error);
+        }
+    }
+    /**
+     * Call calls the specified function. Result will be used to fulfill
+     * the promise.
+     *
+     * @param {SimpleCallbackFunction} func
+     *   A function for an API call.
+     * @param {Object} argument
+     *   A request object.
+     */
+    call(func, argument) {
+        if (this.completed) {
+            return;
+        }
+        // tslint:disable-next-line no-any
+        const canceller = func(argument, (...args) => {
+            this.completed = true;
+            setImmediate(this.callback, ...args);
+        });
+        this.cancelFunc = () => canceller.cancel();
+    }
+}
+exports.OngoingCall = OngoingCall;
+class OngoingCallPromise extends OngoingCall {
+    /**
+     * GaxPromise is GRPCCallbackWrapper, but it holds a promise when
+     * the API call finishes.
+     * @param {Function} PromiseCtor - A constructor for a promise that implements
+     * the ES6 specification of promise.
+     * @constructor
+     * @private
+     */
+    // tslint:disable-next-line variable-name
+    constructor(PromiseCtor) {
+        super();
+        this.promise = new PromiseCtor((resolve, reject) => {
+            this.callback = (err, response, next, rawResponse) => {
+                if (err) {
+                    reject(err);
+                }
+                else if (response !== undefined) {
+                    resolve([response, next, rawResponse]);
+                }
+                else {
+                    throw new googleError_1.GoogleError('Neither error nor response are defined');
+                }
+            };
+        });
+        this.promise.cancel = () => {
+            this.cancel();
+        };
+    }
+}
+exports.OngoingCallPromise = OngoingCallPromise;
+//# sourceMappingURL=call.js.map

node_modules/google-gax/build/src/call.js.map

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node_modules/google-gax/build/src/createApiCall.d.ts

@@ -0,0 +1,23 @@
+import { GaxCall, GRPCCall } from './apitypes';
+import { Descriptor } from './descriptor';
+import { CallSettings } from './gax';
+/**
+ * Converts an rpc call into an API call governed by the settings.
+ *
+ * In typical usage, `func` will be a promise to a callable used to make an rpc
+ * request. This will mostly likely be a bound method from a request stub used
+ * to make an rpc call. It is not a direct function but a Promise instance,
+ * because of its asynchronism (typically, obtaining the auth information).
+ *
+ * The result is a function which manages the API call with the given settings
+ * and the options on the invocation.
+ *
+ * @param {Promise<GRPCCall>|GRPCCall} func - is either a promise to be used to make
+ *   a bare RPC call, or just a bare RPC call.
+ * @param {CallSettings} settings - provides the settings for this call
+ * @param {Descriptor} descriptor - optionally specify the descriptor for
+ *   the method call.
+ * @return {GaxCall} func - a bound method on a request stub used
+ *   to make an rpc call.
+ */
+export declare function createApiCall(func: Promise<GRPCCall> | GRPCCall, settings: CallSettings, descriptor?: Descriptor): GaxCall;

node_modules/google-gax/build/src/createApiCall.js

@@ -0,0 +1,93 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Provides function wrappers that implement page streaming and retrying.
+ */
+const apiCaller_1 = require("./apiCaller");
+const retries_1 = require("./normalCalls/retries");
+const timeout_1 = require("./normalCalls/timeout");
+/**
+ * Converts an rpc call into an API call governed by the settings.
+ *
+ * In typical usage, `func` will be a promise to a callable used to make an rpc
+ * request. This will mostly likely be a bound method from a request stub used
+ * to make an rpc call. It is not a direct function but a Promise instance,
+ * because of its asynchronism (typically, obtaining the auth information).
+ *
+ * The result is a function which manages the API call with the given settings
+ * and the options on the invocation.
+ *
+ * @param {Promise<GRPCCall>|GRPCCall} func - is either a promise to be used to make
+ *   a bare RPC call, or just a bare RPC call.
+ * @param {CallSettings} settings - provides the settings for this call
+ * @param {Descriptor} descriptor - optionally specify the descriptor for
+ *   the method call.
+ * @return {GaxCall} func - a bound method on a request stub used
+ *   to make an rpc call.
+ */
+function createApiCall(func, settings, descriptor) {
+    // we want to be able to accept both promise resolving to a function and a
+    // function. Currently client librares are only calling this method with a
+    // promise, but it will change.
+    const funcPromise = typeof func === 'function' ? Promise.resolve(func) : func;
+    // the following apiCaller will be used for all calls of this function...
+    const apiCaller = apiCaller_1.createAPICaller(settings, descriptor);
+    return (request, callOptions, callback) => {
+        const thisSettings = settings.merge(callOptions);
+        let currentApiCaller = apiCaller;
+        // special case: if bundling is disabled for this one call,
+        // use default API caller instead
+        if (settings.isBundling && !thisSettings.isBundling) {
+            currentApiCaller = apiCaller_1.createAPICaller(settings, undefined);
+        }
+        const status = currentApiCaller.init(thisSettings, callback);
+        funcPromise
+            .then(func => {
+            func = currentApiCaller.wrap(func);
+            const retry = thisSettings.retry;
+            if (retry && retry.retryCodes && retry.retryCodes.length > 0) {
+                return retries_1.retryable(func, thisSettings.retry, thisSettings.otherArgs);
+            }
+            return timeout_1.addTimeoutArg(func, thisSettings.timeout, thisSettings.otherArgs);
+        })
+            .then(apiCall => {
+            currentApiCaller.call(apiCall, request, thisSettings, status);
+        })
+            .catch(err => {
+            currentApiCaller.fail(status, err);
+        });
+        return currentApiCaller.result(status);
+    };
+}
+exports.createApiCall = createApiCall;
+//# sourceMappingURL=createApiCall.js.map

node_modules/google-gax/build/src/createApiCall.js.map

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node_modules/google-gax/build/src/descriptor.d.ts

@@ -0,0 +1,9 @@
+import { APICaller } from './apiCaller';
+import { CallSettings } from './gax';
+export interface Descriptor {
+    getApiCaller(settings: CallSettings): APICaller;
+}
+export { LongRunningDescriptor as LongrunningDescriptor, } from './longRunningCalls/longRunningDescriptor';
+export { PageDescriptor } from './paginationCalls/pageDescriptor';
+export { StreamDescriptor } from './streamingCalls/streamDescriptor';
+export { BundleDescriptor } from './bundlingCalls/bundleDescriptor';

node_modules/google-gax/build/src/descriptor.js

@@ -0,0 +1,41 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+var longRunningDescriptor_1 = require("./longRunningCalls/longRunningDescriptor");
+exports.LongrunningDescriptor = longRunningDescriptor_1.LongRunningDescriptor;
+var pageDescriptor_1 = require("./paginationCalls/pageDescriptor");
+exports.PageDescriptor = pageDescriptor_1.PageDescriptor;
+var streamDescriptor_1 = require("./streamingCalls/streamDescriptor");
+exports.StreamDescriptor = streamDescriptor_1.StreamDescriptor;
+var bundleDescriptor_1 = require("./bundlingCalls/bundleDescriptor");
+exports.BundleDescriptor = bundleDescriptor_1.BundleDescriptor;
+//# sourceMappingURL=descriptor.js.map

node_modules/google-gax/build/src/descriptor.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/fallback.d.ts

@@ -0,0 +1,133 @@
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/// <reference types="node" />
+import * as protobuf from 'protobufjs';
+import * as gax from './gax';
+import * as routingHeader from './routingHeader';
+import { OutgoingHttpHeaders } from 'http';
+import { GoogleAuth, OAuth2Client, Compute, JWT, UserRefreshClient } from 'google-auth-library';
+import { OperationsClientBuilder } from './operationsClient';
+import { GrpcClientOptions, ClientStubOptions } from './grpc';
+import { GaxCall, GRPCCall } from './apitypes';
+import { Descriptor } from './descriptor';
+export { PathTemplate } from './pathTemplate';
+export { routingHeader };
+export { CallSettings, constructSettings, RetryOptions } from './gax';
+export declare const version: any;
+export { BundleDescriptor, LongrunningDescriptor, PageDescriptor, StreamDescriptor, } from './descriptor';
+export { StreamType } from './streamingCalls/streaming';
+export declare class GrpcClient {
+    auth?: OAuth2Client | GoogleAuth;
+    authClient?: OAuth2Client | Compute | JWT | UserRefreshClient;
+    promise?: PromiseConstructor;
+    fallback: boolean;
+    grpcVersion: string;
+    /**
+     * gRPC-fallback version of GrpcClient
+     * Implements GrpcClient API for a browser using grpc-fallback protocol (sends serialized protobuf to HTTP/1 $rpc endpoint).
+     *
+     * @param {Object=} options.auth - An instance of OAuth2Client to use in browser, or an instance of GoogleAuth from google-auth-library
+     *  to use in Node.js. Required for browser, optional for Node.js.
+     * @param {Function=} options.promise - A constructor for a promise that
+     * implements the ES6 specification of promise.
+     * @constructor
+     */
+    constructor(options?: GrpcClientOptions | {
+        auth: OAuth2Client;
+    });
+    /**
+     * gRPC-fallback version of loadProto
+     * Loads the protobuf root object from a JSON object created from a proto file
+     * @param {Object} jsonObject - A JSON version of a protofile created usin protobuf.js
+     * @returns {Object} Root namespace of proto JSON
+     */
+    loadProto(jsonObject: any): protobuf.Root;
+    private getServiceMethods;
+    /**
+     * gRPC-fallback version of constructSettings
+     * A wrapper of {@link constructSettings} function under the gRPC context.
+     *
+     * Most of parameters are common among constructSettings, please take a look.
+     * @param {string} serviceName - The fullly-qualified name of the service.
+     * @param {Object} clientConfig - A dictionary of the client config.
+     * @param {Object} configOverrides - A dictionary of overriding configs.
+     * @param {Object} headers - A dictionary of additional HTTP header name to
+     *   its value.
+     * @return {Object} A mapping of method names to CallSettings.
+     */
+    constructSettings(serviceName: string, clientConfig: gax.ClientConfig, configOverrides: gax.ClientConfig, headers: OutgoingHttpHeaders): any;
+    /**
+     * gRPC-fallback version of createStub
+     * Creates a gRPC-fallback stub with authentication headers built from supplied OAuth2Client instance
+     *
+     * @param {function} CreateStub - The constructor function of the stub.
+     * @param {Object} service - A protobufjs Service object (as returned by lookupService)
+     * @param {Object} opts - Connection options, as described below.
+     * @param {string} opts.servicePath - The hostname of the API endpoint service.
+     * @param {number} opts.port - The port of the service.
+     * @return {Promise} A promise which resolves to a gRPC-fallback service stub, which is a protobuf.js service stub instance modified to match the gRPC stub API
+     */
+    createStub(service: protobuf.Service, opts: ClientStubOptions): Promise<protobuf.rpc.Service>;
+}
+/**
+ * gRPC-fallback version of lro
+ *
+ * @param {Object=} options.auth - An instance of google-auth-library.
+ * @param {Function=} options.promise - A constructor for a promise that
+ * implements the ES6 specification of promise.
+ * @return {Object} A OperationsClientBuilder that will return a OperationsClient
+ */
+export declare function lro(options: GrpcClientOptions): OperationsClientBuilder;
+/**
+ * gRPC-fallback version of createApiCall
+ *
+ * Converts an rpc call into an API call governed by the settings.
+ *
+ * In typical usage, `func` will be a promise to a callable used to make an rpc
+ * request. This will mostly likely be a bound method from a request stub used
+ * to make an rpc call. It is not a direct function but a Promise instance,
+ * because of its asynchronism (typically, obtaining the auth information).
+ *
+ * The result is a function which manages the API call with the given settings
+ * and the options on the invocation.
+ *
+ * Throws exception on unsupported streaming calls
+ *
+ * @param {Promise<GRPCCall>|GRPCCall} func - is either a promise to be used to make
+ *   a bare RPC call, or just a bare RPC call.
+ * @param {CallSettings} settings - provides the settings for this call
+ * @param {Descriptor} descriptor - optionally specify the descriptor for
+ *   the method call.
+ * @return {GaxCall} func - a bound method on a request stub used
+ *   to make an rpc call.
+ */
+export declare function createApiCall(func: Promise<GRPCCall> | GRPCCall, settings: gax.CallSettings, descriptor?: Descriptor): GaxCall;
+export { protobuf };

node_modules/google-gax/build/src/fallback.js

@@ -0,0 +1,315 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const protobuf = require("protobufjs");
+exports.protobuf = protobuf;
+const gax = require("./gax");
+const nodeFetch = require("node-fetch");
+const routingHeader = require("./routingHeader");
+exports.routingHeader = routingHeader;
+const abort_controller_1 = require("abort-controller");
+const status_1 = require("./status");
+const google_auth_library_1 = require("google-auth-library");
+const operationsClient_1 = require("./operationsClient");
+const createApiCall_1 = require("./createApiCall");
+const isbrowser_1 = require("./isbrowser");
+const fallbackError_1 = require("./fallbackError");
+var pathTemplate_1 = require("./pathTemplate");
+exports.PathTemplate = pathTemplate_1.PathTemplate;
+var gax_1 = require("./gax");
+exports.CallSettings = gax_1.CallSettings;
+exports.constructSettings = gax_1.constructSettings;
+exports.RetryOptions = gax_1.RetryOptions;
+exports.version = require('../../package.json').version;
+var descriptor_1 = require("./descriptor");
+exports.BundleDescriptor = descriptor_1.BundleDescriptor;
+exports.LongrunningDescriptor = descriptor_1.LongrunningDescriptor;
+exports.PageDescriptor = descriptor_1.PageDescriptor;
+exports.StreamDescriptor = descriptor_1.StreamDescriptor;
+var streaming_1 = require("./streamingCalls/streaming");
+exports.StreamType = streaming_1.StreamType;
+class GrpcClient {
+    /**
+     * gRPC-fallback version of GrpcClient
+     * Implements GrpcClient API for a browser using grpc-fallback protocol (sends serialized protobuf to HTTP/1 $rpc endpoint).
+     *
+     * @param {Object=} options.auth - An instance of OAuth2Client to use in browser, or an instance of GoogleAuth from google-auth-library
+     *  to use in Node.js. Required for browser, optional for Node.js.
+     * @param {Function=} options.promise - A constructor for a promise that
+     * implements the ES6 specification of promise.
+     * @constructor
+     */
+    constructor(options = {}) {
+        if (isbrowser_1.isBrowser()) {
+            if (!options.auth) {
+                throw new Error(JSON.stringify(options) +
+                    'You need to pass auth instance to use gRPC-fallback client in browser. Use OAuth2Client from google-auth-library.');
+            }
+            this.auth = options.auth;
+        }
+        else {
+            this.auth =
+                options.auth ||
+                    new google_auth_library_1.GoogleAuth(options);
+        }
+        this.promise = 'promise' in options ? options.promise : Promise;
+        this.fallback = true;
+        this.grpcVersion = 'fallback'; // won't be used anywhere but we need it to exist in the class
+    }
+    /**
+     * gRPC-fallback version of loadProto
+     * Loads the protobuf root object from a JSON object created from a proto file
+     * @param {Object} jsonObject - A JSON version of a protofile created usin protobuf.js
+     * @returns {Object} Root namespace of proto JSON
+     */
+    loadProto(jsonObject) {
+        const rootObject = protobuf.Root.fromJSON(jsonObject);
+        return rootObject;
+    }
+    getServiceMethods(service) {
+        const methods = Object.keys(service.methods);
+        const methodsLowerCamelCase = methods.map(method => {
+            return method[0].toLowerCase() + method.substring(1);
+        });
+        return methodsLowerCamelCase;
+    }
+    /**
+     * gRPC-fallback version of constructSettings
+     * A wrapper of {@link constructSettings} function under the gRPC context.
+     *
+     * Most of parameters are common among constructSettings, please take a look.
+     * @param {string} serviceName - The fullly-qualified name of the service.
+     * @param {Object} clientConfig - A dictionary of the client config.
+     * @param {Object} configOverrides - A dictionary of overriding configs.
+     * @param {Object} headers - A dictionary of additional HTTP header name to
+     *   its value.
+     * @return {Object} A mapping of method names to CallSettings.
+     */
+    constructSettings(serviceName, clientConfig, configOverrides, headers) {
+        function buildMetadata(abTests, moreHeaders) {
+            const metadata = {};
+            if (!moreHeaders) {
+                return {};
+            }
+            for (const key in moreHeaders) {
+                if (key.toLowerCase() !== 'x-goog-api-client' &&
+                    moreHeaders.hasOwnProperty(key)) {
+                    const value = moreHeaders[key];
+                    if (Array.isArray(value)) {
+                        if (metadata[key] === undefined) {
+                            metadata[key] = value;
+                        }
+                        else {
+                            metadata[key].push(...value);
+                        }
+                    }
+                    else {
+                        metadata[key] = [value];
+                    }
+                }
+            }
+            return metadata;
+        }
+        return gax.constructSettings(serviceName, clientConfig, configOverrides, status_1.Status, { metadataBuilder: buildMetadata }, this.promise);
+    }
+    /**
+     * gRPC-fallback version of createStub
+     * Creates a gRPC-fallback stub with authentication headers built from supplied OAuth2Client instance
+     *
+     * @param {function} CreateStub - The constructor function of the stub.
+     * @param {Object} service - A protobufjs Service object (as returned by lookupService)
+     * @param {Object} opts - Connection options, as described below.
+     * @param {string} opts.servicePath - The hostname of the API endpoint service.
+     * @param {number} opts.port - The port of the service.
+     * @return {Promise} A promise which resolves to a gRPC-fallback service stub, which is a protobuf.js service stub instance modified to match the gRPC stub API
+     */
+    async createStub(service, opts) {
+        // an RPC function to be passed to protobufjs RPC API
+        function serviceClientImpl(method, requestData, callback) {
+            return [method, requestData, callback];
+        }
+        // decoder for google.rpc.Status messages
+        const statusDecoder = new fallbackError_1.FallbackErrorDecoder();
+        if (!this.authClient) {
+            if (this.auth && 'getClient' in this.auth) {
+                this.authClient = await this.auth.getClient();
+            }
+            else if (this.auth && 'getRequestHeaders' in this.auth) {
+                this.authClient = this.auth;
+            }
+        }
+        if (!this.authClient) {
+            throw new Error('No authentication was provided');
+        }
+        const authHeader = await this.authClient.getRequestHeaders();
+        const serviceStub = service.create(serviceClientImpl, false, false);
+        const methods = this.getServiceMethods(service);
+        const newServiceStub = service.create(serviceClientImpl, false, false);
+        for (const methodName of methods) {
+            newServiceStub[methodName] = (req, options, metadata, callback) => {
+                const [method, requestData, serviceCallback] = serviceStub[methodName].apply(serviceStub, [req, callback]);
+                let cancelController, cancelSignal;
+                if (isbrowser_1.isBrowser && typeof AbortController !== 'undefined') {
+                    cancelController = new AbortController();
+                }
+                else {
+                    cancelController = new abort_controller_1.AbortController();
+                }
+                if (cancelController) {
+                    cancelSignal = cancelController.signal;
+                }
+                let cancelRequested = false;
+                const headers = Object.assign({}, authHeader);
+                headers['Content-Type'] = 'application/x-protobuf';
+                for (const key of Object.keys(options)) {
+                    headers[key] = options[key][0];
+                }
+                const grpcFallbackProtocol = opts.protocol || 'https';
+                let servicePath = opts.servicePath;
+                if (!servicePath) {
+                    if (service.options && service.options['(google.api.default_host)']) {
+                        servicePath = service.options['(google.api.default_host)'];
+                    }
+                    else {
+                        serviceCallback(new Error('Service path is undefined'));
+                        return;
+                    }
+                }
+                let servicePort;
+                const match = servicePath.match(/^(.*):(\d+)$/);
+                if (match) {
+                    servicePath = match[1];
+                    servicePort = match[2];
+                }
+                if (opts.port) {
+                    servicePort = opts.port;
+                }
+                else if (!servicePort) {
+                    servicePort = 443;
+                }
+                const protoNamespaces = [];
+                let currNamespace = method.parent;
+                while (currNamespace.name !== '') {
+                    protoNamespaces.unshift(currNamespace.name);
+                    currNamespace = currNamespace.parent;
+                }
+                const protoServiceName = protoNamespaces.join('.');
+                const rpcName = method.name;
+                const url = `${grpcFallbackProtocol}://${servicePath}:${servicePort}/$rpc/${protoServiceName}/${rpcName}`;
+                const fetch = isbrowser_1.isBrowser() ? window.fetch : nodeFetch;
+                fetch(url, {
+                    headers,
+                    method: 'post',
+                    body: requestData,
+                    signal: cancelSignal,
+                })
+                    .then(response => {
+                    return Promise.all([
+                        Promise.resolve(response.ok),
+                        response.arrayBuffer(),
+                    ]);
+                })
+                    .then(([ok, buffer]) => {
+                    if (!ok) {
+                        const status = statusDecoder.decodeRpcStatus(buffer);
+                        throw new Error(JSON.stringify(status));
+                    }
+                    serviceCallback(null, new Uint8Array(buffer));
+                })
+                    .catch(err => {
+                    if (!cancelRequested || err.name !== 'AbortError') {
+                        serviceCallback(err);
+                    }
+                });
+                return {
+                    cancel: () => {
+                        if (!cancelController) {
+                            console.warn('AbortController not found: Cancellation is not supported in this environment');
+                            return;
+                        }
+                        cancelRequested = true;
+                        cancelController.abort();
+                    },
+                };
+            };
+        }
+        return newServiceStub;
+    }
+}
+exports.GrpcClient = GrpcClient;
+/**
+ * gRPC-fallback version of lro
+ *
+ * @param {Object=} options.auth - An instance of google-auth-library.
+ * @param {Function=} options.promise - A constructor for a promise that
+ * implements the ES6 specification of promise.
+ * @return {Object} A OperationsClientBuilder that will return a OperationsClient
+ */
+function lro(options) {
+    options = Object.assign({ scopes: [] }, options);
+    const gaxGrpc = new GrpcClient(options);
+    return new operationsClient_1.OperationsClientBuilder(gaxGrpc);
+}
+exports.lro = lro;
+/**
+ * gRPC-fallback version of createApiCall
+ *
+ * Converts an rpc call into an API call governed by the settings.
+ *
+ * In typical usage, `func` will be a promise to a callable used to make an rpc
+ * request. This will mostly likely be a bound method from a request stub used
+ * to make an rpc call. It is not a direct function but a Promise instance,
+ * because of its asynchronism (typically, obtaining the auth information).
+ *
+ * The result is a function which manages the API call with the given settings
+ * and the options on the invocation.
+ *
+ * Throws exception on unsupported streaming calls
+ *
+ * @param {Promise<GRPCCall>|GRPCCall} func - is either a promise to be used to make
+ *   a bare RPC call, or just a bare RPC call.
+ * @param {CallSettings} settings - provides the settings for this call
+ * @param {Descriptor} descriptor - optionally specify the descriptor for
+ *   the method call.
+ * @return {GaxCall} func - a bound method on a request stub used
+ *   to make an rpc call.
+ */
+function createApiCall(func, settings, descriptor) {
+    if (descriptor && 'streaming' in descriptor) {
+        return () => {
+            throw new Error('The gRPC-fallback client library (e.g. browser version of the library) currently does not support streaming calls.');
+        };
+    }
+    return createApiCall_1.createApiCall(func, settings, descriptor);
+}
+exports.createApiCall = createApiCall;
+//# sourceMappingURL=fallback.js.map

node_modules/google-gax/build/src/fallbackError.d.ts

@@ -0,0 +1,50 @@
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/// <reference types="node" />
+import * as protobuf from 'protobufjs';
+interface ProtobufAny {
+    type_url: string;
+    value: Uint8Array;
+}
+interface DecodedRpcStatus {
+    code: number;
+    message: string;
+    details: Array<{}>;
+}
+export declare class FallbackErrorDecoder {
+    root: protobuf.Root;
+    anyType: protobuf.Type;
+    statusType: protobuf.Type;
+    constructor();
+    decodeProtobufAny(anyValue: ProtobufAny): protobuf.Message<{}>;
+    decodeRpcStatus(buffer: Buffer | ArrayBuffer): DecodedRpcStatus;
+}
+export {};

node_modules/google-gax/build/src/fallbackError.js

@@ -0,0 +1,68 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const protobuf = require("protobufjs");
+class FallbackErrorDecoder {
+    constructor() {
+        const errorProtoJson = require('../../protos/status.json');
+        this.root = protobuf.Root.fromJSON(errorProtoJson);
+        this.anyType = this.root.lookupType('google.protobuf.Any');
+        this.statusType = this.root.lookupType('google.rpc.Status');
+    }
+    decodeProtobufAny(anyValue) {
+        const match = anyValue.type_url.match(/^type.googleapis.com\/(.*)/);
+        if (!match) {
+            throw new Error(`Unknown type encoded in google.protobuf.any: ${anyValue.type_url}`);
+        }
+        const typeName = match[1];
+        const type = this.root.lookupType(typeName);
+        if (!type) {
+            throw new Error(`Cannot lookup type ${typeName}`);
+        }
+        return type.decode(anyValue.value);
+    }
+    // Decodes gRPC-fallback error which is an instance of google.rpc.Status.
+    decodeRpcStatus(buffer) {
+        const uint8array = new Uint8Array(buffer);
+        const status = this.statusType.decode(uint8array);
+        // google.rpc.Status contains an array of google.protobuf.Any
+        // which need a special treatment
+        const result = {
+            code: status.code,
+            message: status.message,
+            details: status.details.map(detail => this.decodeProtobufAny(detail)),
+        };
+        return result;
+    }
+}
+exports.FallbackErrorDecoder = FallbackErrorDecoder;
+//# sourceMappingURL=fallbackError.js.map

node_modules/google-gax/build/src/fallbackError.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/gax.d.ts

@@ -0,0 +1,387 @@
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * Google API Extensions
+ */
+import { BundleOptions } from './bundlingCalls/bundleExecutor';
+/**
+ * Encapsulates the overridable settings for a particular API call.
+ *
+ * ``CallOptions`` is an optional arg for all GAX API calls.  It is used to
+ * configure the settings of a specific API call.
+ *
+ * When provided, its values override the GAX service defaults for that
+ * particular call.
+ *
+ * Typically the API clients will accept this as the second to the last
+ * argument. See the examples below.
+ * @typedef {Object} CallOptions
+ * @property {number=} timeout - The client-side timeout for API calls.
+ * @property {RetryOptions=} retry - determines whether and how to retry
+ *   on transient errors. When set to null, the call will not retry.
+ * @property {boolean=} autoPaginate - If set to false and the call is
+ *   configured for paged iteration, page unrolling is not performed, instead
+ *   the callback will be called with the response object.
+ * @property {Object=} pageToken - If set and the call is configured for
+ *   paged iteration, paged iteration is not performed and requested with this
+ *   pageToken.
+ * @property {number} maxResults - If set and the call is configured for
+ *   paged iteration, the call will stop when the number of response elements
+ *   reaches to the specified size. By default, it will unroll the page to
+ *   the end of the list.
+ * @property {boolean=} isBundling - If set to false and the call is configured
+ *   for bundling, bundling is not performed.
+ * @property {BackoffSettings=} longrunning - BackoffSettings used for polling.
+ * @property {Function=} promise - A constructor for a promise that implements the ES6
+ * specification of promise which will be used to create promises. If not
+ * provided, native promises will be used.
+ * @example
+ * // suppress bundling for bundled method.
+ * api.bundlingMethod(
+ *     param, {optParam: aValue, isBundling: false}, function(err, response) {
+ *   // handle response.
+ * });
+ * @example
+ * // suppress streaming for page-streaming method.
+ * api.pageStreamingMethod(
+ *     param, {optParam: aValue, autoPaginate: false}, function(err, page) {
+ *   // not returning a stream, but callback is called with the paged response.
+ * });
+ */
+/**
+ * Per-call configurable settings for retrying upon transient failure.
+ * @typedef {Object} RetryOptions
+ * @property {String[]} retryCodes
+ * @property {BackoffSettings} backoffSettings
+ */
+export declare class RetryOptions {
+    retryCodes: number[];
+    backoffSettings: BackoffSettings;
+    constructor(retryCodes: number[], backoffSettings: BackoffSettings);
+}
+/**
+ * Parameters to the exponential backoff algorithm for retrying.
+ * @typedef {Object} BackoffSettings
+ * @property {number} initialRetryDelayMillis - the initial delay time,
+ *   in milliseconds, between the completion of the first failed request and the
+ *   initiation of the first retrying request.
+ * @property {number} retryDelayMultiplier - the multiplier by which to
+ *   increase the delay time between the completion of failed requests, and the
+ *   initiation of the subsequent retrying request.
+ * @property {number} maxRetryDelayMillis - the maximum delay time, in
+ *   milliseconds, between requests. When this value is reached,
+ *   ``retryDelayMultiplier`` will no longer be used to increase delay time.
+ * @property {number} initialRpcTimeoutMillis - the initial timeout parameter
+ *   to the request.
+ * @propetry {number} rpcTimeoutMultiplier - the multiplier by which to
+ *   increase the timeout parameter between failed requests.
+ * @property {number} maxRpcTimeoutMillis - the maximum timeout parameter, in
+ *   milliseconds, for a request. When this value is reached,
+ *   ``rpcTimeoutMultiplier`` will no longer be used to increase the timeout.
+ * @property {number} totalTimeoutMillis - the total time, in milliseconds,
+ *   starting from when the initial request is sent, after which an error will
+ *   be returned, regardless of the retrying attempts made meanwhile.
+ */
+export interface BackoffSettings {
+    maxRetries?: number;
+    initialRetryDelayMillis: number;
+    retryDelayMultiplier: number;
+    maxRetryDelayMillis: number;
+    initialRpcTimeoutMillis?: number | null;
+    maxRpcTimeoutMillis?: number | null;
+    totalTimeoutMillis?: number | null;
+    rpcTimeoutMultiplier?: number | null;
+}
+/**
+ * Parameter to configure bundling behavior.
+ * @typedef {Object} BundleOptions
+ * @property {number} elementCountThreshold -
+ *   the bundled request will be sent once the count of outstanding elements
+ *   in the repeated field reaches this value.
+ * @property {number} elementCountLimit -
+ *   represents a hard limit on the number of elements in the repeated field
+ *   of the bundle; if adding a request to a bundle would exceed this value,
+ *   the bundle is sent and the new request is added to a fresh bundle. It is
+ *   invalid for a single request to exceed this limit.
+ * @property {number} requestByteThreshold -
+ *   the bundled request will be sent once the count of bytes in the request
+ *   reaches this value. Note that this value is pessimistically approximated
+ *   by summing the bytesizes of the elements in the repeated field, and
+ *   therefore may be an under-approximation.
+ * @property {number} requestByteLimit -
+ *   represents a hard limit on the size of the bundled request; if adding
+ *   a request to a bundle would exceed this value, the bundle is sent and
+ *   the new request is added to a fresh bundle. It is invalid for a single
+ *   request to exceed this limit. Note that this value is pessimistically
+ *   approximated by summing the bytesizes of the elements in the repeated
+ *   field, with a buffer applied to correspond to the resulting
+ *   under-approximation.
+ * @property {number} delayThreshold -
+ *   the bundled request will be sent this amount of time after the first
+ *   element in the bundle was added to it.
+ */
+export interface CallOptions {
+    timeout?: number;
+    retry?: RetryOptions | null;
+    autoPaginate?: boolean;
+    pageToken?: string;
+    pageSize?: number;
+    maxResults?: number;
+    maxRetries?: number;
+    otherArgs?: {
+        [index: string]: any;
+    };
+    bundleOptions?: BundleOptions | null;
+    isBundling?: boolean;
+    longrunning?: BackoffSettings;
+    promise?: PromiseConstructor;
+}
+export declare class CallSettings {
+    timeout: number;
+    retry?: RetryOptions | null;
+    autoPaginate?: boolean;
+    pageToken?: string;
+    pageSize?: number;
+    maxResults?: number;
+    otherArgs: {
+        [index: string]: any;
+    };
+    bundleOptions?: BundleOptions | null;
+    isBundling: boolean;
+    longrunning?: BackoffSettings;
+    promise: PromiseConstructor;
+    /**
+     * @param {Object} settings - An object containing parameters of this settings.
+     * @param {number} settings.timeout - The client-side timeout for API calls.
+     *   This parameter is ignored for retrying calls.
+     * @param {RetryOptions} settings.retry - The configuration for retrying upon
+     *   transient error. If set to null, this call will not retry.
+     * @param {boolean} settings.autoPaginate - If there is no `pageDescriptor`,
+     *   this attrbute has no meaning. Otherwise, determines whether a page
+     * streamed response should make the page structure transparent to the user by
+     *   flattening the repeated field in the returned generator.
+     * @param {number} settings.pageToken - If there is no `pageDescriptor`,
+     *   this attribute has no meaning. Otherwise, determines the page token used
+     * in the page streaming request.
+     * @param {Object} settings.otherArgs - Additional arguments to be passed to
+     *   the API calls.
+     * @param {Function=} settings.promise - A constructor for a promise that
+     * implements the ES6 specification of promise. If not provided, native
+     * promises will be used.
+     *
+     * @constructor
+     */
+    constructor(settings?: CallOptions);
+    /**
+     * Returns a new CallSettings merged from this and a CallOptions object.
+     *
+     * @param {CallOptions} options - an instance whose values override
+     *   those in this object. If null, ``merge`` returns a copy of this
+     *   object
+     * @return {CallSettings} The merged CallSettings instance.
+     */
+    merge(options?: CallOptions | null): CallSettings;
+}
+/**
+ * Per-call configurable settings for retrying upon transient failure.
+ *
+ * @param {number[]} retryCodes - a list of Google API canonical error codes
+ *   upon which a retry should be attempted.
+ * @param {BackoffSettings} backoffSettings - configures the retry
+ *   exponential backoff algorithm.
+ * @return {RetryOptions} A new RetryOptions object.
+ *
+ */
+export declare function createRetryOptions(retryCodes: number[], backoffSettings: BackoffSettings): RetryOptions;
+/**
+ * Parameters to the exponential backoff algorithm for retrying.
+ *
+ * @param {number} initialRetryDelayMillis - the initial delay time,
+ *   in milliseconds, between the completion of the first failed request and the
+ *   initiation of the first retrying request.
+ * @param {number} retryDelayMultiplier - the multiplier by which to
+ *   increase the delay time between the completion of failed requests, and the
+ *   initiation of the subsequent retrying request.
+ * @param {number} maxRetryDelayMillis - the maximum delay time, in
+ *   milliseconds, between requests. When this value is reached,
+ *   ``retryDelayMultiplier`` will no longer be used to increase delay time.
+ * @param {number} initialRpcTimeoutMillis - the initial timeout parameter
+ *   to the request.
+ * @param {number} rpcTimeoutMultiplier - the multiplier by which to
+ *   increase the timeout parameter between failed requests.
+ * @param {number} maxRpcTimeoutMillis - the maximum timeout parameter, in
+ *   milliseconds, for a request. When this value is reached,
+ *   ``rpcTimeoutMultiplier`` will no longer be used to increase the timeout.
+ * @param {number} totalTimeoutMillis - the total time, in milliseconds,
+ *   starting from when the initial request is sent, after which an error will
+ *   be returned, regardless of the retrying attempts made meanwhile.
+ * @return {BackoffSettings} a new settings.
+ *
+ */
+export declare function createBackoffSettings(initialRetryDelayMillis: number, retryDelayMultiplier: number, maxRetryDelayMillis: number, initialRpcTimeoutMillis: number | null, rpcTimeoutMultiplier: number | null, maxRpcTimeoutMillis: number | null, totalTimeoutMillis: number | null): BackoffSettings;
+export declare function createDefaultBackoffSettings(): BackoffSettings;
+/**
+ * Parameters to the exponential backoff algorithm for retrying.
+ * This function is unsupported, and intended for internal use only.
+ *
+ * @param {number} initialRetryDelayMillis - the initial delay time,
+ *   in milliseconds, between the completion of the first failed request and the
+ *   initiation of the first retrying request.
+ * @param {number} retryDelayMultiplier - the multiplier by which to
+ *   increase the delay time between the completion of failed requests, and the
+ *   initiation of the subsequent retrying request.
+ * @param {number} maxRetryDelayMillis - the maximum delay time, in
+ *   milliseconds, between requests. When this value is reached,
+ *   ``retryDelayMultiplier`` will no longer be used to increase delay time.
+ * @param {number} initialRpcTimeoutMillis - the initial timeout parameter
+ *   to the request.
+ * @param {number} rpcTimeoutMultiplier - the multiplier by which to
+ *   increase the timeout parameter between failed requests.
+ * @param {number} maxRpcTimeoutMillis - the maximum timeout parameter, in
+ *   milliseconds, for a request. When this value is reached,
+ *   ``rpcTimeoutMultiplier`` will no longer be used to increase the timeout.
+ * @param {number} maxRetries - the maximum number of retrying attempts that
+ *   will be made. If reached, an error will be returned.
+ * @return {BackoffSettings} a new settings.
+ *
+ */
+export declare function createMaxRetriesBackoffSettings(initialRetryDelayMillis: number, retryDelayMultiplier: number, maxRetryDelayMillis: number, initialRpcTimeoutMillis: number, rpcTimeoutMultiplier: number, maxRpcTimeoutMillis: number, maxRetries: number): BackoffSettings;
+/**
+ * Creates a new {@link BundleOptions}.
+ *
+ * @private
+ * @param {Object} options - An object to hold optional parameters. See
+ *   properties for the content of options.
+ * @return {BundleOptions} - A new options.
+ */
+export declare function createBundleOptions(options: BundlingConfig): BundleOptions;
+export interface ServiceConfig {
+    retry_codes: {
+        [index: string]: string[];
+    };
+    retry_params: {
+        [index: string]: RetryParamsConfig;
+    };
+    methods: {
+        [index: string]: MethodConfig;
+    };
+}
+export interface RetryParamsConfig {
+    initial_retry_delay_millis: number;
+    retry_delay_multiplier: number;
+    max_retry_delay_millis: number;
+    initial_rpc_timeout_millis: number;
+    rpc_timeout_multiplier: number;
+    max_rpc_timeout_millis: number;
+    total_timeout_millis: number;
+}
+export interface MethodConfig {
+    retry_codes_name: string;
+    retry_params_name: string;
+    bundling?: BundlingConfig;
+    timeout_millis?: number;
+}
+export interface BundlingConfig {
+    [index: string]: number;
+    element_count_threshold: number;
+    element_count_limit: number;
+    request_byte_threshold: number;
+    request_byte_limit: number;
+    delay_threshold_millis: number;
+}
+export interface ClientConfig {
+    interfaces?: {
+        [index: string]: ServiceConfig;
+    };
+}
+/**
+ * Constructs a dictionary mapping method names to {@link CallSettings}.
+ *
+ * The `clientConfig` parameter is parsed from a client configuration JSON
+ * file of the form:
+ *
+ *     {
+ *       "interfaces": {
+ *         "google.fake.v1.ServiceName": {
+ *           "retry_codes": {
+ *             "idempotent": ["UNAVAILABLE", "DEADLINE_EXCEEDED"],
+ *             "non_idempotent": []
+ *           },
+ *           "retry_params": {
+ *             "default": {
+ *               "initial_retry_delay_millis": 100,
+ *               "retry_delay_multiplier": 1.2,
+ *               "max_retry_delay_millis": 1000,
+ *               "initial_rpc_timeout_millis": 2000,
+ *               "rpc_timeout_multiplier": 1.5,
+ *               "max_rpc_timeout_millis": 30000,
+ *               "total_timeout_millis": 45000
+ *             }
+ *           },
+ *           "methods": {
+ *             "CreateFoo": {
+ *               "retry_codes_name": "idempotent",
+ *               "retry_params_name": "default"
+ *             },
+ *             "Publish": {
+ *               "retry_codes_name": "non_idempotent",
+ *               "retry_params_name": "default",
+ *               "bundling": {
+ *                 "element_count_threshold": 40,
+ *                 "element_count_limit": 200,
+ *                 "request_byte_threshold": 90000,
+ *                 "request_byte_limit": 100000,
+ *                 "delay_threshold_millis": 100
+ *               }
+ *             }
+ *           }
+ *         }
+ *       }
+ *     }
+ *
+ * @param {String} serviceName - The fully-qualified name of this
+ *   service, used as a key into the client config file (in the
+ *   example above, this value should be 'google.fake.v1.ServiceName').
+ * @param {Object} clientConfig - A dictionary parsed from the
+ *   standard API client config file.
+ * @param {Object} configOverrides - A dictionary in the same structure of
+ *   client_config to override the settings.
+ * @param {Object.<string, string[]>} retryNames - A dictionary mapping the strings
+ *   referring to response status codes to objects representing
+ *   those codes.
+ * @param {Object} otherArgs - the non-request arguments to be passed to the API
+ *   calls.
+ * @param {Function=} promise - A constructor for a promise that implements the
+ * ES6 specification of promise. If not provided, native promises will be used.
+ * @return {Object} A mapping from method name to CallSettings, or null if the
+ *   service is not found in the config.
+ */
+export declare function constructSettings(serviceName: string, clientConfig: ClientConfig, configOverrides: ClientConfig, retryNames: {}, otherArgs?: {}, promise?: PromiseConstructor): any;

node_modules/google-gax/build/src/gax.js

@@ -0,0 +1,515 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Encapsulates the overridable settings for a particular API call.
+ *
+ * ``CallOptions`` is an optional arg for all GAX API calls.  It is used to
+ * configure the settings of a specific API call.
+ *
+ * When provided, its values override the GAX service defaults for that
+ * particular call.
+ *
+ * Typically the API clients will accept this as the second to the last
+ * argument. See the examples below.
+ * @typedef {Object} CallOptions
+ * @property {number=} timeout - The client-side timeout for API calls.
+ * @property {RetryOptions=} retry - determines whether and how to retry
+ *   on transient errors. When set to null, the call will not retry.
+ * @property {boolean=} autoPaginate - If set to false and the call is
+ *   configured for paged iteration, page unrolling is not performed, instead
+ *   the callback will be called with the response object.
+ * @property {Object=} pageToken - If set and the call is configured for
+ *   paged iteration, paged iteration is not performed and requested with this
+ *   pageToken.
+ * @property {number} maxResults - If set and the call is configured for
+ *   paged iteration, the call will stop when the number of response elements
+ *   reaches to the specified size. By default, it will unroll the page to
+ *   the end of the list.
+ * @property {boolean=} isBundling - If set to false and the call is configured
+ *   for bundling, bundling is not performed.
+ * @property {BackoffSettings=} longrunning - BackoffSettings used for polling.
+ * @property {Function=} promise - A constructor for a promise that implements the ES6
+ * specification of promise which will be used to create promises. If not
+ * provided, native promises will be used.
+ * @example
+ * // suppress bundling for bundled method.
+ * api.bundlingMethod(
+ *     param, {optParam: aValue, isBundling: false}, function(err, response) {
+ *   // handle response.
+ * });
+ * @example
+ * // suppress streaming for page-streaming method.
+ * api.pageStreamingMethod(
+ *     param, {optParam: aValue, autoPaginate: false}, function(err, page) {
+ *   // not returning a stream, but callback is called with the paged response.
+ * });
+ */
+/**
+ * Per-call configurable settings for retrying upon transient failure.
+ * @typedef {Object} RetryOptions
+ * @property {String[]} retryCodes
+ * @property {BackoffSettings} backoffSettings
+ */
+class RetryOptions {
+    constructor(retryCodes, backoffSettings) {
+        this.retryCodes = retryCodes;
+        this.backoffSettings = backoffSettings;
+    }
+}
+exports.RetryOptions = RetryOptions;
+class CallSettings {
+    /**
+     * @param {Object} settings - An object containing parameters of this settings.
+     * @param {number} settings.timeout - The client-side timeout for API calls.
+     *   This parameter is ignored for retrying calls.
+     * @param {RetryOptions} settings.retry - The configuration for retrying upon
+     *   transient error. If set to null, this call will not retry.
+     * @param {boolean} settings.autoPaginate - If there is no `pageDescriptor`,
+     *   this attrbute has no meaning. Otherwise, determines whether a page
+     * streamed response should make the page structure transparent to the user by
+     *   flattening the repeated field in the returned generator.
+     * @param {number} settings.pageToken - If there is no `pageDescriptor`,
+     *   this attribute has no meaning. Otherwise, determines the page token used
+     * in the page streaming request.
+     * @param {Object} settings.otherArgs - Additional arguments to be passed to
+     *   the API calls.
+     * @param {Function=} settings.promise - A constructor for a promise that
+     * implements the ES6 specification of promise. If not provided, native
+     * promises will be used.
+     *
+     * @constructor
+     */
+    constructor(settings) {
+        settings = settings || {};
+        this.timeout = settings.timeout || 30 * 1000;
+        this.retry = settings.retry;
+        this.autoPaginate =
+            'autoPaginate' in settings ? settings.autoPaginate : true;
+        this.pageToken = settings.pageToken;
+        this.maxResults = settings.maxResults;
+        this.otherArgs = settings.otherArgs || {};
+        this.bundleOptions = settings.bundleOptions;
+        this.isBundling = 'isBundling' in settings ? settings.isBundling : true;
+        this.longrunning =
+            'longrunning' in settings ? settings.longrunning : undefined;
+        this.promise = 'promise' in settings ? settings.promise : Promise;
+    }
+    /**
+     * Returns a new CallSettings merged from this and a CallOptions object.
+     *
+     * @param {CallOptions} options - an instance whose values override
+     *   those in this object. If null, ``merge`` returns a copy of this
+     *   object
+     * @return {CallSettings} The merged CallSettings instance.
+     */
+    merge(options) {
+        if (!options) {
+            return new CallSettings(this);
+        }
+        let timeout = this.timeout;
+        let retry = this.retry;
+        let autoPaginate = this.autoPaginate;
+        let pageToken = this.pageToken;
+        let pageSize = this.pageSize;
+        let maxResults = this.maxResults;
+        let otherArgs = this.otherArgs;
+        let isBundling = this.isBundling;
+        let longrunning = this.longrunning;
+        let promise = this.promise;
+        if ('timeout' in options) {
+            timeout = options.timeout;
+        }
+        if ('retry' in options) {
+            retry = options.retry;
+        }
+        if ('autoPaginate' in options && !options.autoPaginate) {
+            autoPaginate = false;
+        }
+        if ('pageToken' in options) {
+            autoPaginate = false;
+            pageToken = options.pageToken;
+        }
+        if ('pageSize' in options) {
+            pageSize = options.pageSize;
+        }
+        if ('maxResults' in options) {
+            maxResults = options.maxResults;
+        }
+        if ('otherArgs' in options) {
+            otherArgs = {};
+            // tslint:disable-next-line forin
+            for (const key in this.otherArgs) {
+                otherArgs[key] = this.otherArgs[key];
+            }
+            // tslint:disable-next-line forin
+            for (const optionsKey in options.otherArgs) {
+                otherArgs[optionsKey] = options.otherArgs[optionsKey];
+            }
+        }
+        if ('isBundling' in options) {
+            isBundling = options.isBundling;
+        }
+        if ('maxRetries' in options) {
+            retry.backoffSettings.maxRetries = options.maxRetries;
+            delete retry.backoffSettings.totalTimeoutMillis;
+        }
+        if ('longrunning' in options) {
+            longrunning = options.longrunning;
+        }
+        if ('promise' in options) {
+            promise = options.promise;
+        }
+        return new CallSettings({
+            timeout,
+            retry,
+            bundleOptions: this.bundleOptions,
+            longrunning,
+            autoPaginate,
+            pageToken,
+            pageSize,
+            maxResults,
+            otherArgs,
+            isBundling,
+            promise,
+        });
+    }
+}
+exports.CallSettings = CallSettings;
+/**
+ * Per-call configurable settings for retrying upon transient failure.
+ *
+ * @param {number[]} retryCodes - a list of Google API canonical error codes
+ *   upon which a retry should be attempted.
+ * @param {BackoffSettings} backoffSettings - configures the retry
+ *   exponential backoff algorithm.
+ * @return {RetryOptions} A new RetryOptions object.
+ *
+ */
+function createRetryOptions(retryCodes, backoffSettings) {
+    return {
+        retryCodes,
+        backoffSettings,
+    };
+}
+exports.createRetryOptions = createRetryOptions;
+/**
+ * Parameters to the exponential backoff algorithm for retrying.
+ *
+ * @param {number} initialRetryDelayMillis - the initial delay time,
+ *   in milliseconds, between the completion of the first failed request and the
+ *   initiation of the first retrying request.
+ * @param {number} retryDelayMultiplier - the multiplier by which to
+ *   increase the delay time between the completion of failed requests, and the
+ *   initiation of the subsequent retrying request.
+ * @param {number} maxRetryDelayMillis - the maximum delay time, in
+ *   milliseconds, between requests. When this value is reached,
+ *   ``retryDelayMultiplier`` will no longer be used to increase delay time.
+ * @param {number} initialRpcTimeoutMillis - the initial timeout parameter
+ *   to the request.
+ * @param {number} rpcTimeoutMultiplier - the multiplier by which to
+ *   increase the timeout parameter between failed requests.
+ * @param {number} maxRpcTimeoutMillis - the maximum timeout parameter, in
+ *   milliseconds, for a request. When this value is reached,
+ *   ``rpcTimeoutMultiplier`` will no longer be used to increase the timeout.
+ * @param {number} totalTimeoutMillis - the total time, in milliseconds,
+ *   starting from when the initial request is sent, after which an error will
+ *   be returned, regardless of the retrying attempts made meanwhile.
+ * @return {BackoffSettings} a new settings.
+ *
+ */
+function createBackoffSettings(initialRetryDelayMillis, retryDelayMultiplier, maxRetryDelayMillis, initialRpcTimeoutMillis, rpcTimeoutMultiplier, maxRpcTimeoutMillis, totalTimeoutMillis) {
+    return {
+        initialRetryDelayMillis,
+        retryDelayMultiplier,
+        maxRetryDelayMillis,
+        initialRpcTimeoutMillis,
+        rpcTimeoutMultiplier,
+        maxRpcTimeoutMillis,
+        totalTimeoutMillis,
+    };
+}
+exports.createBackoffSettings = createBackoffSettings;
+function createDefaultBackoffSettings() {
+    return createBackoffSettings(100, 1.3, 60000, null, null, null, null);
+}
+exports.createDefaultBackoffSettings = createDefaultBackoffSettings;
+/**
+ * Parameters to the exponential backoff algorithm for retrying.
+ * This function is unsupported, and intended for internal use only.
+ *
+ * @param {number} initialRetryDelayMillis - the initial delay time,
+ *   in milliseconds, between the completion of the first failed request and the
+ *   initiation of the first retrying request.
+ * @param {number} retryDelayMultiplier - the multiplier by which to
+ *   increase the delay time between the completion of failed requests, and the
+ *   initiation of the subsequent retrying request.
+ * @param {number} maxRetryDelayMillis - the maximum delay time, in
+ *   milliseconds, between requests. When this value is reached,
+ *   ``retryDelayMultiplier`` will no longer be used to increase delay time.
+ * @param {number} initialRpcTimeoutMillis - the initial timeout parameter
+ *   to the request.
+ * @param {number} rpcTimeoutMultiplier - the multiplier by which to
+ *   increase the timeout parameter between failed requests.
+ * @param {number} maxRpcTimeoutMillis - the maximum timeout parameter, in
+ *   milliseconds, for a request. When this value is reached,
+ *   ``rpcTimeoutMultiplier`` will no longer be used to increase the timeout.
+ * @param {number} maxRetries - the maximum number of retrying attempts that
+ *   will be made. If reached, an error will be returned.
+ * @return {BackoffSettings} a new settings.
+ *
+ */
+function createMaxRetriesBackoffSettings(initialRetryDelayMillis, retryDelayMultiplier, maxRetryDelayMillis, initialRpcTimeoutMillis, rpcTimeoutMultiplier, maxRpcTimeoutMillis, maxRetries) {
+    return {
+        initialRetryDelayMillis,
+        retryDelayMultiplier,
+        maxRetryDelayMillis,
+        initialRpcTimeoutMillis,
+        rpcTimeoutMultiplier,
+        maxRpcTimeoutMillis,
+        maxRetries,
+    };
+}
+exports.createMaxRetriesBackoffSettings = createMaxRetriesBackoffSettings;
+/**
+ * Creates a new {@link BundleOptions}.
+ *
+ * @private
+ * @param {Object} options - An object to hold optional parameters. See
+ *   properties for the content of options.
+ * @return {BundleOptions} - A new options.
+ */
+function createBundleOptions(options) {
+    const params = [
+        'element_count_threshold',
+        'element_count_limit',
+        'request_byte_threshold',
+        'request_byte_limit',
+        'delay_threshold_millis',
+    ];
+    params.forEach(param => {
+        if (param in options && typeof options[param] !== 'number') {
+            throw new Error(`${param} should be a number`);
+        }
+    });
+    const elementCountThreshold = options.element_count_threshold || 0;
+    const elementCountLimit = options.element_count_limit || 0;
+    const requestByteThreshold = options.request_byte_threshold || 0;
+    const requestByteLimit = options.request_byte_limit || 0;
+    const delayThreshold = options.delay_threshold_millis || 0;
+    if (elementCountThreshold === 0 &&
+        requestByteThreshold === 0 &&
+        delayThreshold === 0) {
+        throw new Error('one threshold should be > 0');
+    }
+    return {
+        elementCountThreshold,
+        elementCountLimit,
+        requestByteThreshold,
+        requestByteLimit,
+        delayThreshold,
+    };
+}
+exports.createBundleOptions = createBundleOptions;
+/**
+ * Helper for {@link constructSettings}
+ *
+ * @private
+ *
+ * @param {Object} methodConfig - A dictionary representing a single
+ *   `methods` entry of the standard API client config file. (See
+ *   {@link constructSettings} for information on this yaml.)
+ * @param {?Object} retryCodes - A dictionary parsed from the
+ *   `retry_codes_def` entry of the standard API client config
+ *   file. (See {@link constructSettings} for information on this yaml.)
+ * @param {Object} retryParams - A dictionary parsed from the
+ *   `retry_params` entry of the standard API client config
+ *   file. (See {@link constructSettings} for information on this yaml.)
+ * @param {Object} retryNames - A dictionary mapping the string names
+ *   used in the standard API client config file to API response
+ *   status codes.
+ * @return {?RetryOptions} The new retry options.
+ */
+function constructRetry(methodConfig, retryCodes, retryParams, retryNames) {
+    if (!methodConfig) {
+        return null;
+    }
+    let codes = null;
+    if (retryCodes && 'retry_codes_name' in methodConfig) {
+        const retryCodesName = methodConfig['retry_codes_name'];
+        codes = (retryCodes[retryCodesName] || []).map(name => {
+            return Number(retryNames[name]);
+        });
+    }
+    let backoffSettings = null;
+    if (retryParams && 'retry_params_name' in methodConfig) {
+        const params = retryParams[methodConfig.retry_params_name];
+        backoffSettings = createBackoffSettings(params.initial_retry_delay_millis, params.retry_delay_multiplier, params.max_retry_delay_millis, params.initial_rpc_timeout_millis, params.rpc_timeout_multiplier, params.max_rpc_timeout_millis, params.total_timeout_millis);
+    }
+    return createRetryOptions(codes, backoffSettings);
+}
+/**
+ * Helper for {@link constructSettings}
+ *
+ * Takes two retry options, and merges them into a single RetryOption instance.
+ *
+ * @private
+ *
+ * @param {RetryOptions} retry - The base RetryOptions.
+ * @param {RetryOptions} overrides - The RetryOptions used for overriding
+ *   `retry`. Use the values if it is not null. If entire `overrides` is null,
+ *   ignore the base retry and return null.
+ * @return {?RetryOptions} The merged RetryOptions.
+ */
+function mergeRetryOptions(retry, overrides) {
+    if (!overrides) {
+        return null;
+    }
+    if (!overrides.retryCodes && !overrides.backoffSettings) {
+        return retry;
+    }
+    let codes = retry.retryCodes;
+    if (overrides.retryCodes) {
+        codes = overrides.retryCodes;
+    }
+    let backoffSettings = retry.backoffSettings;
+    if (overrides.backoffSettings) {
+        backoffSettings = overrides.backoffSettings;
+    }
+    return createRetryOptions(codes, backoffSettings);
+}
+/**
+ * Constructs a dictionary mapping method names to {@link CallSettings}.
+ *
+ * The `clientConfig` parameter is parsed from a client configuration JSON
+ * file of the form:
+ *
+ *     {
+ *       "interfaces": {
+ *         "google.fake.v1.ServiceName": {
+ *           "retry_codes": {
+ *             "idempotent": ["UNAVAILABLE", "DEADLINE_EXCEEDED"],
+ *             "non_idempotent": []
+ *           },
+ *           "retry_params": {
+ *             "default": {
+ *               "initial_retry_delay_millis": 100,
+ *               "retry_delay_multiplier": 1.2,
+ *               "max_retry_delay_millis": 1000,
+ *               "initial_rpc_timeout_millis": 2000,
+ *               "rpc_timeout_multiplier": 1.5,
+ *               "max_rpc_timeout_millis": 30000,
+ *               "total_timeout_millis": 45000
+ *             }
+ *           },
+ *           "methods": {
+ *             "CreateFoo": {
+ *               "retry_codes_name": "idempotent",
+ *               "retry_params_name": "default"
+ *             },
+ *             "Publish": {
+ *               "retry_codes_name": "non_idempotent",
+ *               "retry_params_name": "default",
+ *               "bundling": {
+ *                 "element_count_threshold": 40,
+ *                 "element_count_limit": 200,
+ *                 "request_byte_threshold": 90000,
+ *                 "request_byte_limit": 100000,
+ *                 "delay_threshold_millis": 100
+ *               }
+ *             }
+ *           }
+ *         }
+ *       }
+ *     }
+ *
+ * @param {String} serviceName - The fully-qualified name of this
+ *   service, used as a key into the client config file (in the
+ *   example above, this value should be 'google.fake.v1.ServiceName').
+ * @param {Object} clientConfig - A dictionary parsed from the
+ *   standard API client config file.
+ * @param {Object} configOverrides - A dictionary in the same structure of
+ *   client_config to override the settings.
+ * @param {Object.<string, string[]>} retryNames - A dictionary mapping the strings
+ *   referring to response status codes to objects representing
+ *   those codes.
+ * @param {Object} otherArgs - the non-request arguments to be passed to the API
+ *   calls.
+ * @param {Function=} promise - A constructor for a promise that implements the
+ * ES6 specification of promise. If not provided, native promises will be used.
+ * @return {Object} A mapping from method name to CallSettings, or null if the
+ *   service is not found in the config.
+ */
+function constructSettings(serviceName, clientConfig, configOverrides, retryNames, otherArgs, promise) {
+    otherArgs = otherArgs || {};
+    // tslint:disable-next-line no-any
+    const defaults = {};
+    const serviceConfig = (clientConfig.interfaces || {})[serviceName];
+    if (!serviceConfig) {
+        return null;
+    }
+    const overrides = (configOverrides.interfaces || {})[serviceName] || {};
+    const methods = serviceConfig.methods;
+    const overridingMethods = overrides.methods || {};
+    // tslint:disable-next-line forin
+    for (const methodName in methods) {
+        const methodConfig = methods[methodName];
+        const jsName = methodName[0].toLowerCase() + methodName.slice(1);
+        let retry = constructRetry(methodConfig, serviceConfig.retry_codes, serviceConfig.retry_params, retryNames);
+        let bundlingConfig = methodConfig.bundling;
+        let timeout = methodConfig.timeout_millis;
+        if (methodName in overridingMethods) {
+            const overridingMethod = overridingMethods[methodName];
+            if (overridingMethod) {
+                if ('bundling' in overridingMethod) {
+                    bundlingConfig = overridingMethod.bundling;
+                }
+                if ('timeout_millis' in overridingMethod) {
+                    timeout = overridingMethod.timeout_millis;
+                }
+            }
+            retry = mergeRetryOptions(retry, constructRetry(overridingMethod, overrides.retry_codes, overrides.retry_params, retryNames));
+        }
+        defaults[jsName] = new CallSettings({
+            timeout,
+            retry,
+            bundleOptions: bundlingConfig
+                ? createBundleOptions(bundlingConfig)
+                : null,
+            otherArgs,
+            promise: promise || Promise,
+        });
+    }
+    return defaults;
+}
+exports.constructSettings = constructSettings;
+//# sourceMappingURL=gax.js.map

node_modules/google-gax/build/src/googleError.d.ts

@@ -0,0 +1,5 @@
+import { Status } from './status';
+export declare class GoogleError extends Error {
+    code?: Status;
+    note?: string;
+}

node_modules/google-gax/build/src/googleError.js

@@ -0,0 +1,36 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+class GoogleError extends Error {
+}
+exports.GoogleError = GoogleError;
+//# sourceMappingURL=googleError.js.map

node_modules/google-gax/build/src/googleError.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"googleError.js","sourceRoot":"","sources":["../../src/googleError.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAIH,MAAa,WAAY,SAAQ,KAAK;CAGrC;AAHD,kCAGC"}

node_modules/google-gax/build/src/grpc.d.ts

@@ -0,0 +1,130 @@
+/// <reference types="node" />
+import * as grpcProtoLoader from '@grpc/proto-loader';
+import { GoogleAuth, GoogleAuthOptions } from 'google-auth-library';
+import * as grpc from '@grpc/grpc-js';
+import { OutgoingHttpHeaders } from 'http';
+import * as protobuf from 'protobufjs';
+import * as gax from './gax';
+export interface GrpcClientOptions extends GoogleAuthOptions {
+    auth?: GoogleAuth;
+    promise?: PromiseConstructor;
+    grpc?: GrpcModule;
+}
+export interface MetadataValue {
+    equals: Function;
+}
+export interface Metadata {
+    new (): Metadata;
+    set: (key: {}, value?: {} | null) => void;
+    clone: () => Metadata;
+    value: MetadataValue;
+    get: (key: {}) => {};
+}
+export declare type GrpcModule = typeof grpc;
+export interface ClientStubOptions {
+    protocol?: string;
+    servicePath: string;
+    port: number;
+    sslCreds?: any;
+}
+export declare class ClientStub extends grpc.Client {
+    [name: string]: Function;
+}
+export declare class GrpcClient {
+    auth: GoogleAuth;
+    promise: PromiseConstructor;
+    grpc: GrpcModule;
+    grpcVersion: string;
+    fallback: boolean;
+    /**
+     * A class which keeps the context of gRPC and auth for the gRPC.
+     *
+     * @param {Object=} options - The optional parameters. It will be directly
+     *   passed to google-auth-library library, so parameters like keyFile or
+     *   credentials will be valid.
+     * @param {Object=} options.auth - An instance of google-auth-library.
+     *   When specified, this auth instance will be used instead of creating
+     *   a new one.
+     * @param {Object=} options.grpc - When specified, this will be used
+     *   for the 'grpc' module in this context. By default, it will load the grpc
+     *   module in the standard way.
+     * @param {Function=} options.promise - A constructor for a promise that
+     * implements the ES6 specification of promise. If not provided, native
+     * promises will be used.
+     * @constructor
+     */
+    constructor(options?: GrpcClientOptions);
+    /**
+     * Creates a gRPC credentials. It asks the auth data if necessary.
+     * @private
+     * @param {Object} opts - options values for configuring credentials.
+     * @param {Object=} opts.sslCreds - when specified, this is used instead
+     *   of default channel credentials.
+     * @return {Promise} The promise which will be resolved to the gRPC credential.
+     */
+    _getCredentials(opts: ClientStubOptions): Promise<any>;
+    /**
+     * Loads the gRPC service from the proto file(s) at the given path and with the
+     * given options.
+     * @param filename The path to the proto file(s).
+     * @param options Options for loading the proto file.
+     */
+    loadFromProto(filename: string | string[], options: grpcProtoLoader.Options): grpc.GrpcObject;
+    /**
+     * Load grpc proto service from a filename hooking in googleapis common protos
+     * when necessary.
+     * @param {String} protoPath - The directory to search for the protofile.
+     * @param {String|String[]} filename - The filename(s) of the proto(s) to be loaded.
+     *   If omitted, protoPath will be treated as a file path to load.
+     * @return {Object<string, *>} The gRPC loaded result (the toplevel namespace
+     *   object).
+     */
+    loadProto(protoPath: string, filename?: string | string[]): grpc.GrpcObject;
+    static _resolveFile(protoPath: string, filename: string): string;
+    metadataBuilder(headers: OutgoingHttpHeaders): (abTests?: {} | undefined, moreHeaders?: OutgoingHttpHeaders | undefined) => grpc.Metadata;
+    /**
+     * A wrapper of {@link constructSettings} function under the gRPC context.
+     *
+     * Most of parameters are common among constructSettings, please take a look.
+     * @param {string} serviceName - The fullly-qualified name of the service.
+     * @param {Object} clientConfig - A dictionary of the client config.
+     * @param {Object} configOverrides - A dictionary of overriding configs.
+     * @param {Object} headers - A dictionary of additional HTTP header name to
+     *   its value.
+     * @return {Object} A mapping of method names to CallSettings.
+     */
+    constructSettings(serviceName: string, clientConfig: gax.ClientConfig, configOverrides: gax.ClientConfig, headers: OutgoingHttpHeaders): any;
+    /**
+     * Creates a gRPC stub with current gRPC and auth.
+     * @param {function} CreateStub - The constructor function of the stub.
+     * @param {Object} options - The optional arguments to customize
+     *   gRPC connection. This options will be passed to the constructor of
+     *   gRPC client too.
+     * @param {string} options.servicePath - The name of the server of the service.
+     * @param {number} options.port - The port of the service.
+     * @param {grpcTypes.ClientCredentials=} options.sslCreds - The credentials to be used
+     *   to set up gRPC connection.
+     * @return {Promise} A promise which resolves to a gRPC stub instance.
+     */
+    createStub(CreateStub: typeof ClientStub, options: ClientStubOptions): Promise<ClientStub>;
+    /**
+     * Creates a 'bytelength' function for a given proto message class.
+     *
+     * See {@link BundleDescriptor} about the meaning of the return value.
+     *
+     * @param {function} message - a constructor function that is generated by
+     *   protobuf.js. Assumes 'encoder' field in the message.
+     * @return {function(Object):number} - a function to compute the byte length
+     *   for an object.
+     */
+    static createByteLengthFunction(message: {
+        encode: (obj: {}) => {
+            finish: () => Array<{}>;
+        };
+    }): (obj: {}) => number;
+}
+export declare class GoogleProtoFilesRoot extends protobuf.Root {
+    constructor(...args: Array<{}>);
+    resolvePath(originPath: string, includePath: string): string;
+    static _findIncludePath(originPath: string, includePath: string): string;
+}

node_modules/google-gax/build/src/grpc.js

@@ -0,0 +1,293 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const grpcProtoLoader = require("@grpc/proto-loader");
+const fs = require("fs");
+const google_auth_library_1 = require("google-auth-library");
+const grpc = require("@grpc/grpc-js");
+const path = require("path");
+const protobuf = require("protobufjs");
+const semver = require("semver");
+const walk = require("walkdir");
+const gax = require("./gax");
+const googleProtoFilesDir = path.join(__dirname, '..', '..', 'protos');
+// INCLUDE_DIRS is passed to @grpc/proto-loader
+const INCLUDE_DIRS = [];
+INCLUDE_DIRS.push(googleProtoFilesDir);
+// COMMON_PROTO_FILES logic is here for protobufjs loads (see
+// GoogleProtoFilesRoot below)
+const COMMON_PROTO_FILES = walk
+    .sync(googleProtoFilesDir)
+    .filter(f => path.extname(f) === '.proto')
+    .map(f => path.normalize(f).substring(googleProtoFilesDir.length + 1));
+class ClientStub extends grpc.Client {
+}
+exports.ClientStub = ClientStub;
+class GrpcClient {
+    /**
+     * A class which keeps the context of gRPC and auth for the gRPC.
+     *
+     * @param {Object=} options - The optional parameters. It will be directly
+     *   passed to google-auth-library library, so parameters like keyFile or
+     *   credentials will be valid.
+     * @param {Object=} options.auth - An instance of google-auth-library.
+     *   When specified, this auth instance will be used instead of creating
+     *   a new one.
+     * @param {Object=} options.grpc - When specified, this will be used
+     *   for the 'grpc' module in this context. By default, it will load the grpc
+     *   module in the standard way.
+     * @param {Function=} options.promise - A constructor for a promise that
+     * implements the ES6 specification of promise. If not provided, native
+     * promises will be used.
+     * @constructor
+     */
+    constructor(options = {}) {
+        this.auth = options.auth || new google_auth_library_1.GoogleAuth(options);
+        this.promise = options.promise || Promise;
+        this.fallback = false;
+        if ('grpc' in options) {
+            this.grpc = options.grpc;
+            this.grpcVersion = '';
+        }
+        else {
+            if (semver.gte(process.version, '8.13.0')) {
+                this.grpc = grpc;
+                this.grpcVersion = require('@grpc/grpc-js/package.json').version;
+            }
+            else {
+                const errorMessage = 'To use @grpc/grpc-js you must run your code on Node.js v8.13.0 or newer. Please see README if you need to use an older version. ' +
+                    'https://github.com/googleapis/gax-nodejs/blob/master/README.md';
+                throw new Error(errorMessage);
+            }
+        }
+    }
+    /**
+     * Creates a gRPC credentials. It asks the auth data if necessary.
+     * @private
+     * @param {Object} opts - options values for configuring credentials.
+     * @param {Object=} opts.sslCreds - when specified, this is used instead
+     *   of default channel credentials.
+     * @return {Promise} The promise which will be resolved to the gRPC credential.
+     */
+    async _getCredentials(opts) {
+        if (opts.sslCreds) {
+            return opts.sslCreds;
+        }
+        const grpc = this.grpc;
+        const sslCreds = grpc.credentials.createSsl();
+        const client = await this.auth.getClient();
+        const credentials = grpc.credentials.combineChannelCredentials(sslCreds, grpc.credentials.createFromGoogleCredential(client));
+        return credentials;
+    }
+    /**
+     * Loads the gRPC service from the proto file(s) at the given path and with the
+     * given options.
+     * @param filename The path to the proto file(s).
+     * @param options Options for loading the proto file.
+     */
+    loadFromProto(filename, options) {
+        const packageDef = grpcProtoLoader.loadSync(filename, options);
+        return this.grpc.loadPackageDefinition(packageDef);
+    }
+    /**
+     * Load grpc proto service from a filename hooking in googleapis common protos
+     * when necessary.
+     * @param {String} protoPath - The directory to search for the protofile.
+     * @param {String|String[]} filename - The filename(s) of the proto(s) to be loaded.
+     *   If omitted, protoPath will be treated as a file path to load.
+     * @return {Object<string, *>} The gRPC loaded result (the toplevel namespace
+     *   object).
+     */
+    loadProto(protoPath, filename) {
+        if (!filename) {
+            filename = path.basename(protoPath);
+            protoPath = path.dirname(protoPath);
+        }
+        if (Array.isArray(filename) && filename.length === 0) {
+            return {};
+        }
+        // This set of @grpc/proto-loader options
+        // 'closely approximates the existing behavior of grpc.load'
+        const includeDirs = INCLUDE_DIRS.slice();
+        includeDirs.unshift(protoPath);
+        const options = {
+            keepCase: false,
+            longs: String,
+            enums: String,
+            defaults: true,
+            oneofs: true,
+            includeDirs,
+        };
+        return this.loadFromProto(filename, options);
+    }
+    static _resolveFile(protoPath, filename) {
+        if (fs.existsSync(path.join(protoPath, filename))) {
+            return path.join(protoPath, filename);
+        }
+        else if (COMMON_PROTO_FILES.indexOf(filename) > -1) {
+            return path.join(googleProtoFilesDir, filename);
+        }
+        throw new Error(filename + ' could not be found in ' + protoPath);
+    }
+    metadataBuilder(headers) {
+        const Metadata = this.grpc.Metadata;
+        const baseMetadata = new Metadata();
+        // tslint:disable-next-line forin
+        for (const key in headers) {
+            const value = headers[key];
+            if (Array.isArray(value)) {
+                value.forEach(v => baseMetadata.add(key, v));
+            }
+            else {
+                baseMetadata.set(key, `${value}`);
+            }
+        }
+        return function buildMetadata(abTests, moreHeaders) {
+            // TODO: bring the A/B testing info into the metadata.
+            let copied = false;
+            let metadata = baseMetadata;
+            if (moreHeaders) {
+                for (const key in moreHeaders) {
+                    if (key.toLowerCase() !== 'x-goog-api-client' &&
+                        moreHeaders.hasOwnProperty(key)) {
+                        if (!copied) {
+                            copied = true;
+                            metadata = metadata.clone();
+                        }
+                        const value = moreHeaders[key];
+                        if (Array.isArray(value)) {
+                            value.forEach(v => metadata.add(key, v));
+                        }
+                        else {
+                            metadata.set(key, `${value}`);
+                        }
+                    }
+                }
+            }
+            return metadata;
+        };
+    }
+    /**
+     * A wrapper of {@link constructSettings} function under the gRPC context.
+     *
+     * Most of parameters are common among constructSettings, please take a look.
+     * @param {string} serviceName - The fullly-qualified name of the service.
+     * @param {Object} clientConfig - A dictionary of the client config.
+     * @param {Object} configOverrides - A dictionary of overriding configs.
+     * @param {Object} headers - A dictionary of additional HTTP header name to
+     *   its value.
+     * @return {Object} A mapping of method names to CallSettings.
+     */
+    constructSettings(serviceName, clientConfig, configOverrides, headers) {
+        return gax.constructSettings(serviceName, clientConfig, configOverrides, this.grpc.status, { metadataBuilder: this.metadataBuilder(headers) }, this.promise);
+    }
+    /**
+     * Creates a gRPC stub with current gRPC and auth.
+     * @param {function} CreateStub - The constructor function of the stub.
+     * @param {Object} options - The optional arguments to customize
+     *   gRPC connection. This options will be passed to the constructor of
+     *   gRPC client too.
+     * @param {string} options.servicePath - The name of the server of the service.
+     * @param {number} options.port - The port of the service.
+     * @param {grpcTypes.ClientCredentials=} options.sslCreds - The credentials to be used
+     *   to set up gRPC connection.
+     * @return {Promise} A promise which resolves to a gRPC stub instance.
+     */
+    // tslint:disable-next-line variable-name
+    async createStub(CreateStub, options) {
+        const serviceAddress = options.servicePath + ':' + options.port;
+        const creds = await this._getCredentials(options);
+        const grpcOptions = {};
+        Object.keys(options).forEach(key => {
+            if (key.startsWith('grpc.')) {
+                grpcOptions[key.replace(/^grpc\./, '')] = options[key];
+            }
+        });
+        const stub = new CreateStub(serviceAddress, creds, grpcOptions);
+        return stub;
+    }
+    /**
+     * Creates a 'bytelength' function for a given proto message class.
+     *
+     * See {@link BundleDescriptor} about the meaning of the return value.
+     *
+     * @param {function} message - a constructor function that is generated by
+     *   protobuf.js. Assumes 'encoder' field in the message.
+     * @return {function(Object):number} - a function to compute the byte length
+     *   for an object.
+     */
+    static createByteLengthFunction(message) {
+        return function getByteLength(obj) {
+            return message.encode(obj).finish().length;
+        };
+    }
+}
+exports.GrpcClient = GrpcClient;
+class GoogleProtoFilesRoot extends protobuf.Root {
+    constructor(...args) {
+        super(...args);
+    }
+    // Causes the loading of an included proto to check if it is a common
+    // proto. If it is a common proto, use the bundled proto.
+    resolvePath(originPath, includePath) {
+        originPath = path.normalize(originPath);
+        includePath = path.normalize(includePath);
+        // Fully qualified paths don't need to be resolved.
+        if (path.isAbsolute(includePath)) {
+            if (!fs.existsSync(includePath)) {
+                throw new Error('The include `' + includePath + '` was not found.');
+            }
+            return includePath;
+        }
+        if (COMMON_PROTO_FILES.indexOf(includePath) > -1) {
+            return path.join(googleProtoFilesDir, includePath);
+        }
+        return GoogleProtoFilesRoot._findIncludePath(originPath, includePath);
+    }
+    static _findIncludePath(originPath, includePath) {
+        originPath = path.normalize(originPath);
+        includePath = path.normalize(includePath);
+        let current = originPath;
+        let found = fs.existsSync(path.join(current, includePath));
+        while (!found && current.length > 0) {
+            current = current.substring(0, current.lastIndexOf(path.sep));
+            found = fs.existsSync(path.join(current, includePath));
+        }
+        if (!found) {
+            throw new Error('The include `' + includePath + '` was not found.');
+        }
+        return path.join(current, includePath);
+    }
+}
+exports.GoogleProtoFilesRoot = GoogleProtoFilesRoot;
+//# sourceMappingURL=grpc.js.map

node_modules/google-gax/build/src/index.d.ts

@@ -0,0 +1,57 @@
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+import { GrpcClient, GrpcClientOptions } from './grpc';
+import * as operationsClient from './operationsClient';
+import * as routingHeader from './routingHeader';
+export { GoogleAuth, GoogleAuthOptions } from 'google-auth-library';
+export { CancellablePromise, OngoingCall } from './call';
+export { createApiCall } from './createApiCall';
+export { BundleDescriptor, LongrunningDescriptor, PageDescriptor, StreamDescriptor, } from './descriptor';
+export { CallOptions, CallSettings, ClientConfig, constructSettings, RetryOptions, } from './gax';
+export { GoogleError } from './googleError';
+export { ClientStub, ClientStubOptions, GoogleProtoFilesRoot, GrpcClient, GrpcClientOptions, GrpcModule, Metadata, MetadataValue, } from './grpc';
+export { Operation, operation } from './longRunningCalls/longrunning';
+export { PathTemplate } from './pathTemplate';
+export { StreamType } from './streamingCalls/streaming';
+export { routingHeader };
+declare function lro(options: GrpcClientOptions): operationsClient.OperationsClientBuilder;
+declare namespace lro {
+    var SERVICE_ADDRESS: string;
+    var ALL_SCOPES: string[];
+}
+export { lro };
+export declare const createByteLengthFunction: typeof GrpcClient.createByteLengthFunction;
+export declare const version: any;
+import * as protobuf from 'protobufjs';
+export { protobuf };
+import * as fallback from './fallback';
+export { fallback };
+export { GRPCCallResult, ServerStreamingCall, ClientStreamingCall, BiDiStreamingCall, UnaryCall, GRPCCall, } from './apitypes';

node_modules/google-gax/build/src/index.js

@@ -0,0 +1,79 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const grpc_1 = require("./grpc");
+const operationsClient = require("./operationsClient");
+const routingHeader = require("./routingHeader");
+exports.routingHeader = routingHeader;
+var google_auth_library_1 = require("google-auth-library");
+exports.GoogleAuth = google_auth_library_1.GoogleAuth;
+var call_1 = require("./call");
+exports.OngoingCall = call_1.OngoingCall;
+var createApiCall_1 = require("./createApiCall");
+exports.createApiCall = createApiCall_1.createApiCall;
+var descriptor_1 = require("./descriptor");
+exports.BundleDescriptor = descriptor_1.BundleDescriptor;
+exports.LongrunningDescriptor = descriptor_1.LongrunningDescriptor;
+exports.PageDescriptor = descriptor_1.PageDescriptor;
+exports.StreamDescriptor = descriptor_1.StreamDescriptor;
+var gax_1 = require("./gax");
+exports.CallSettings = gax_1.CallSettings;
+exports.constructSettings = gax_1.constructSettings;
+exports.RetryOptions = gax_1.RetryOptions;
+var googleError_1 = require("./googleError");
+exports.GoogleError = googleError_1.GoogleError;
+var grpc_2 = require("./grpc");
+exports.ClientStub = grpc_2.ClientStub;
+exports.GoogleProtoFilesRoot = grpc_2.GoogleProtoFilesRoot;
+exports.GrpcClient = grpc_2.GrpcClient;
+var longrunning_1 = require("./longRunningCalls/longrunning");
+exports.Operation = longrunning_1.Operation;
+exports.operation = longrunning_1.operation;
+var pathTemplate_1 = require("./pathTemplate");
+exports.PathTemplate = pathTemplate_1.PathTemplate;
+var streaming_1 = require("./streamingCalls/streaming");
+exports.StreamType = streaming_1.StreamType;
+function lro(options) {
+    options = Object.assign({ scopes: lro.ALL_SCOPES }, options);
+    const gaxGrpc = new grpc_1.GrpcClient(options);
+    return new operationsClient.OperationsClientBuilder(gaxGrpc);
+}
+exports.lro = lro;
+lro.SERVICE_ADDRESS = operationsClient.SERVICE_ADDRESS;
+lro.ALL_SCOPES = operationsClient.ALL_SCOPES;
+exports.createByteLengthFunction = grpc_1.GrpcClient.createByteLengthFunction;
+exports.version = require('../../package.json').version;
+const protobuf = require("protobufjs");
+exports.protobuf = protobuf;
+const fallback = require("./fallback");
+exports.fallback = fallback;
+//# sourceMappingURL=index.js.map

node_modules/google-gax/build/src/index.js.map

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node_modules/google-gax/build/src/isbrowser.d.ts

@@ -0,0 +1 @@
+export declare function isBrowser(): boolean;

node_modules/google-gax/build/src/isbrowser.js

@@ -0,0 +1,37 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+function isBrowser() {
+    return typeof window !== 'undefined';
+}
+exports.isBrowser = isBrowser;
+//# sourceMappingURL=isbrowser.js.map

node_modules/google-gax/build/src/isbrowser.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"isbrowser.js","sourceRoot":"","sources":["../../src/isbrowser.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAEH,SAAgB,SAAS;IACvB,OAAO,OAAO,MAAM,KAAK,WAAW,CAAC;AACvC,CAAC;AAFD,8BAEC"}

node_modules/google-gax/build/src/longRunningCalls/longRunningApiCaller.d.ts

@@ -0,0 +1,28 @@
+import { APICaller, ApiCallerSettings } from '../apiCaller';
+import { APICallback, GRPCCall, SimpleCallbackFunction } from '../apitypes';
+import { OngoingCall, OngoingCallPromise } from '../call';
+import { CallOptions } from '../gax';
+import { GoogleError } from '../googleError';
+import { Operation } from './longrunning';
+import { LongRunningDescriptor } from './longRunningDescriptor';
+export declare class LongrunningApiCaller implements APICaller {
+    longrunningDescriptor: LongRunningDescriptor;
+    /**
+     * Creates an API caller that performs polling on a long running operation.
+     *
+     * @private
+     * @constructor
+     * @param {LongRunningDescriptor} longrunningDescriptor - Holds the
+     * decoders used for unpacking responses and the operationsClient
+     * used for polling the operation.
+     */
+    constructor(longrunningDescriptor: LongRunningDescriptor);
+    init(settings: ApiCallerSettings, callback?: APICallback): OngoingCallPromise | OngoingCall;
+    wrap(func: GRPCCall): GRPCCall;
+    call(apiCall: SimpleCallbackFunction, argument: {}, settings: CallOptions, canceller: OngoingCallPromise): void;
+    private _wrapOperation;
+    fail(canceller: OngoingCallPromise, err: GoogleError): void;
+    result(canceller: OngoingCallPromise): import("../call").CancellablePromise<[import("../apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | Operation | undefined]>;
+}

node_modules/google-gax/build/src/longRunningCalls/longRunningApiCaller.js

@@ -0,0 +1,86 @@
+"use strict";
+/*
+ * Copyright 2019, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const call_1 = require("../call");
+const gax_1 = require("../gax");
+const longrunning_1 = require("./longrunning");
+class LongrunningApiCaller {
+    /**
+     * Creates an API caller that performs polling on a long running operation.
+     *
+     * @private
+     * @constructor
+     * @param {LongRunningDescriptor} longrunningDescriptor - Holds the
+     * decoders used for unpacking responses and the operationsClient
+     * used for polling the operation.
+     */
+    constructor(longrunningDescriptor) {
+        this.longrunningDescriptor = longrunningDescriptor;
+    }
+    init(settings, callback) {
+        if (callback) {
+            return new call_1.OngoingCall(callback);
+        }
+        return new call_1.OngoingCallPromise(settings.promise);
+    }
+    wrap(func) {
+        return func;
+    }
+    call(apiCall, argument, settings, canceller) {
+        canceller.call((argument, callback) => {
+            return this._wrapOperation(apiCall, settings, argument, callback);
+        }, argument);
+    }
+    _wrapOperation(apiCall, settings, argument, callback) {
+        let backoffSettings = settings.longrunning;
+        if (!backoffSettings) {
+            backoffSettings = gax_1.createDefaultBackoffSettings();
+        }
+        const longrunningDescriptor = this.longrunningDescriptor;
+        return apiCall(argument, (err, rawResponse) => {
+            if (err) {
+                callback(err, null, null, rawResponse);
+                return;
+            }
+            const operation = new longrunning_1.Operation(rawResponse, longrunningDescriptor, backoffSettings, settings);
+            callback(null, operation, rawResponse);
+        });
+    }
+    fail(canceller, err) {
+        canceller.callback(err);
+    }
+    result(canceller) {
+        return canceller.promise;
+    }
+}
+exports.LongrunningApiCaller = LongrunningApiCaller;
+//# sourceMappingURL=longRunningApiCaller.js.map

node_modules/google-gax/build/src/longRunningCalls/longRunningApiCaller.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/longRunningCalls/longRunningDescriptor.d.ts

@@ -0,0 +1,21 @@
+import { Descriptor } from '../descriptor';
+import { CallSettings } from '../gax';
+import { Metadata } from '../grpc';
+import { OperationsClient } from '../operationsClient';
+import { LongrunningApiCaller } from './longRunningApiCaller';
+/**
+ * A callback to upack a google.protobuf.Any message.
+ */
+export interface AnyDecoder {
+    (message: {}): Metadata;
+}
+/**
+ * A descriptor for long-running operations.
+ */
+export declare class LongRunningDescriptor implements Descriptor {
+    operationsClient: OperationsClient;
+    responseDecoder: AnyDecoder;
+    metadataDecoder: AnyDecoder;
+    constructor(operationsClient: OperationsClient, responseDecoder: AnyDecoder, metadataDecoder: AnyDecoder);
+    getApiCaller(settings: CallSettings): LongrunningApiCaller;
+}

node_modules/google-gax/build/src/longRunningCalls/longRunningDescriptor.js

@@ -0,0 +1,48 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const longRunningApiCaller_1 = require("./longRunningApiCaller");
+/**
+ * A descriptor for long-running operations.
+ */
+class LongRunningDescriptor {
+    constructor(operationsClient, responseDecoder, metadataDecoder) {
+        this.operationsClient = operationsClient;
+        this.responseDecoder = responseDecoder;
+        this.metadataDecoder = metadataDecoder;
+    }
+    getApiCaller(settings) {
+        return new longRunningApiCaller_1.LongrunningApiCaller(this);
+    }
+}
+exports.LongRunningDescriptor = LongRunningDescriptor;
+//# sourceMappingURL=longRunningDescriptor.js.map

node_modules/google-gax/build/src/longRunningCalls/longRunningDescriptor.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/longRunningCalls/longrunning.d.ts

@@ -0,0 +1,119 @@
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+import { ResultTuple } from '../apitypes';
+import { CancellablePromise } from '../call';
+import { BackoffSettings, CallOptions } from '../gax';
+import { GoogleError } from '../googleError';
+import { Metadata } from '../grpc';
+import { LongRunningDescriptor } from './longRunningDescriptor';
+/**
+ * @callback GetOperationCallback
+ * @param {?Error} error
+ * @param {?Object} result
+ * @param {?Object} metadata
+ * @param {?google.longrunning.Operation} rawResponse
+ */
+export interface GetOperationCallback {
+    (err?: Error | null, result?: {}, metadata?: {}, rawResponse?: Operation): void;
+}
+export declare class Operation extends EventEmitter {
+    completeListeners: number;
+    hasActiveListeners: boolean;
+    latestResponse: Operation;
+    longrunningDescriptor: LongRunningDescriptor;
+    result: {} | null;
+    metadata: Metadata | null;
+    backoffSettings: BackoffSettings;
+    _callOptions?: CallOptions;
+    currentCallPromise_?: CancellablePromise<ResultTuple>;
+    name?: string;
+    done?: boolean;
+    error?: GoogleError;
+    response?: {
+        value: {};
+    };
+    /**
+     * Wrapper for a google.longrunnung.Operation.
+     *
+     * @constructor
+     *
+     * @param {google.longrunning.Operation} grpcOp - The operation to be wrapped.
+     * @param {LongRunningDescriptor} longrunningDescriptor - This defines the
+     * operations service client and unpacking mechanisms for the operation.
+     * @param {BackoffSettings} backoffSettings - The backoff settings used in
+     * in polling the operation.
+     * @param {CallOptions} callOptions - CallOptions used in making get operation
+     * requests.
+     */
+    constructor(grpcOp: Operation, longrunningDescriptor: LongRunningDescriptor, backoffSettings: BackoffSettings, callOptions?: CallOptions);
+    /**
+     * Begin listening for events on the operation. This method keeps track of how
+     * many "complete" listeners are registered and removed, making sure polling
+     * is handled automatically.
+     *
+     * As long as there is one active "complete" listener, the connection is open.
+     * When there are no more listeners, the polling stops.
+     *
+     * @private
+     */
+    _listenForEvents(): void;
+    /**
+     * Cancels current polling api call and cancels the operation.
+     *
+     * @return {Promise} the promise of the OperationsClient#cancelOperation api
+     * request.
+     */
+    cancel(): CancellablePromise<[import("../apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | Operation | undefined]>;
+    /**
+     * Get the updated status of the operation. If the Operation has previously
+     * completed, this will use the status of the cached completed operation.
+     *
+     *   - callback(err): Operation failed
+     *   - callback(null, result, metadata, rawResponse): Operation complete
+     *   - callback(null, null, metadata, rawResponse): Operation incomplete
+     *
+     * @param {getOperationCallback} callback - Callback to handle the polled
+     * operation result and metadata.
+     * @return {Promise|undefined} - This returns a promise if a callback is not specified.
+     * The promise resolves to an array where the first element is the unpacked
+     * result, the second element is the metadata, and the third element is the
+     * raw response of the api call. The promise rejects if the operation returns
+     * an error.
+     */
+    getOperation(): Promise<{}>;
+    getOperation(callback: GetOperationCallback): void;
+    _unpackResponse(op: Operation, callback?: GetOperationCallback): void;
+    /**
+     * Poll `getOperation` to check the operation's status. This runs a loop to
+     * ping using the backoff strategy specified at initialization.
+     *
+     * Note: This method is automatically called once a "complete" event handler
+     * is registered on the operation.
+     *
+     * @private
+     */
+    startPolling_(): void;
+    /**
+     * Wraps the `complete` and `error` events in a Promise.
+     *
+     * @return {promise} - Promise that resolves on operation completion and rejects
+     * on operation error.
+     */
+    promise(): Promise<unknown>;
+}
+/**
+ * Method used to create Operation objects.
+ *
+ * @constructor
+ *
+ * @param {google.longrunning.Operation} op - The operation to be wrapped.
+ * @param {LongRunningDescriptor} longrunningDescriptor - This defines the
+ * operations service client and unpacking mechanisms for the operation.
+ * @param {BackoffSettings} backoffSettings - The backoff settings used in
+ * in polling the operation.
+ * @param {CallOptions=} callOptions - CallOptions used in making get operation
+ * requests.
+ */
+export declare function operation(op: Operation, longrunningDescriptor: LongRunningDescriptor, backoffSettings: BackoffSettings, callOptions?: CallOptions): Operation;

node_modules/google-gax/build/src/longRunningCalls/longrunning.js

@@ -0,0 +1,287 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const events_1 = require("events");
+const status_1 = require("../status");
+const googleError_1 = require("../googleError");
+class Operation extends events_1.EventEmitter {
+    /**
+     * Wrapper for a google.longrunnung.Operation.
+     *
+     * @constructor
+     *
+     * @param {google.longrunning.Operation} grpcOp - The operation to be wrapped.
+     * @param {LongRunningDescriptor} longrunningDescriptor - This defines the
+     * operations service client and unpacking mechanisms for the operation.
+     * @param {BackoffSettings} backoffSettings - The backoff settings used in
+     * in polling the operation.
+     * @param {CallOptions} callOptions - CallOptions used in making get operation
+     * requests.
+     */
+    constructor(grpcOp, longrunningDescriptor, backoffSettings, callOptions) {
+        super();
+        this.completeListeners = 0;
+        this.hasActiveListeners = false;
+        this.latestResponse = grpcOp;
+        this.name = this.latestResponse.name;
+        this.done = this.latestResponse.done;
+        this.error = this.latestResponse.error;
+        this.longrunningDescriptor = longrunningDescriptor;
+        this.result = null;
+        this.metadata = null;
+        this.backoffSettings = backoffSettings;
+        this._unpackResponse(grpcOp);
+        this._listenForEvents();
+        this._callOptions = callOptions;
+    }
+    /**
+     * Begin listening for events on the operation. This method keeps track of how
+     * many "complete" listeners are registered and removed, making sure polling
+     * is handled automatically.
+     *
+     * As long as there is one active "complete" listener, the connection is open.
+     * When there are no more listeners, the polling stops.
+     *
+     * @private
+     */
+    _listenForEvents() {
+        this.on('newListener', event => {
+            if (event === 'complete') {
+                this.completeListeners++;
+                if (!this.hasActiveListeners) {
+                    this.hasActiveListeners = true;
+                    this.startPolling_();
+                }
+            }
+        });
+        this.on('removeListener', event => {
+            if (event === 'complete' && --this.completeListeners === 0) {
+                this.hasActiveListeners = false;
+            }
+        });
+    }
+    /**
+     * Cancels current polling api call and cancels the operation.
+     *
+     * @return {Promise} the promise of the OperationsClient#cancelOperation api
+     * request.
+     */
+    cancel() {
+        if (this.currentCallPromise_) {
+            this.currentCallPromise_.cancel();
+        }
+        const operationsClient = this.longrunningDescriptor.operationsClient;
+        return operationsClient.cancelOperation({
+            name: this.latestResponse.name,
+        });
+    }
+    getOperation(callback) {
+        const self = this;
+        const operationsClient = this.longrunningDescriptor.operationsClient;
+        function promisifyResponse() {
+            if (!callback) {
+                // tslint:disable-next-line variable-name
+                const PromiseCtor = self._callOptions.promise;
+                return new PromiseCtor((resolve, reject) => {
+                    if (self.latestResponse.error) {
+                        const error = new googleError_1.GoogleError(self.latestResponse.error.message);
+                        error.code = self.latestResponse.error.code;
+                        reject(error);
+                    }
+                    else {
+                        resolve([self.result, self.metadata, self.latestResponse]);
+                    }
+                });
+            }
+            return;
+        }
+        if (this.latestResponse.done) {
+            this._unpackResponse(this.latestResponse, callback);
+            return promisifyResponse();
+        }
+        this.currentCallPromise_ = operationsClient.getOperation({ name: this.latestResponse.name }, this._callOptions);
+        const noCallbackPromise = this.currentCallPromise_.then(responses => {
+            self.latestResponse = responses[0];
+            self._unpackResponse(responses[0], callback);
+            return promisifyResponse();
+        });
+        if (!callback) {
+            return noCallbackPromise;
+        }
+    }
+    _unpackResponse(op, callback) {
+        const responseDecoder = this.longrunningDescriptor.responseDecoder;
+        const metadataDecoder = this.longrunningDescriptor.metadataDecoder;
+        let response;
+        let metadata;
+        if (op.done) {
+            if (op.result === 'error') {
+                const error = new googleError_1.GoogleError(op.error.message);
+                error.code = op.error.code;
+                this.error = error;
+                if (callback) {
+                    callback(error);
+                }
+                return;
+            }
+            if (responseDecoder && op.response) {
+                this.response = op.response;
+                response = responseDecoder(op.response.value);
+                this.result = response;
+                this.done = true;
+            }
+        }
+        if (metadataDecoder && op.metadata) {
+            metadata = metadataDecoder(op.metadata.value);
+            this.metadata = metadata;
+        }
+        if (callback) {
+            callback(null, response, metadata, op);
+        }
+    }
+    /**
+     * Poll `getOperation` to check the operation's status. This runs a loop to
+     * ping using the backoff strategy specified at initialization.
+     *
+     * Note: This method is automatically called once a "complete" event handler
+     * is registered on the operation.
+     *
+     * @private
+     */
+    startPolling_() {
+        const self = this;
+        let now = new Date();
+        const delayMult = this.backoffSettings.retryDelayMultiplier;
+        const maxDelay = this.backoffSettings.maxRetryDelayMillis;
+        let delay = this.backoffSettings.initialRetryDelayMillis;
+        let deadline = Infinity;
+        if (this.backoffSettings.totalTimeoutMillis) {
+            deadline = now.getTime() + this.backoffSettings.totalTimeoutMillis;
+        }
+        let previousMetadataBytes;
+        if (this.latestResponse.metadata) {
+            previousMetadataBytes = this.latestResponse.metadata.value;
+        }
+        // tslint:disable-next-line no-any
+        function emit(event, ...args) {
+            self.emit(event, ...args);
+        }
+        //Helper function to replace nodejs buffer's equals()
+        function arrayEquals(a, b) {
+            if (a.byteLength !== b.byteLength) {
+                return false;
+            }
+            for (let i = a.length; -1 < i; i -= 1) {
+                if (a[i] !== b[i])
+                    return false;
+            }
+            return true;
+        }
+        function retry() {
+            if (!self.hasActiveListeners) {
+                return;
+            }
+            if (now.getTime() >= deadline) {
+                const error = new googleError_1.GoogleError('Total timeout exceeded before any response was received');
+                error.code = status_1.Status.DEADLINE_EXCEEDED;
+                setImmediate(emit, 'error', error);
+                return;
+            }
+            self.getOperation((err, result, metadata, rawResponse) => {
+                if (err) {
+                    setImmediate(emit, 'error', err);
+                    return;
+                }
+                if (!result) {
+                    if (rawResponse.metadata &&
+                        (!previousMetadataBytes ||
+                            (rawResponse &&
+                                !arrayEquals(rawResponse.metadata.value, previousMetadataBytes)))) {
+                        setImmediate(emit, 'progress', metadata, rawResponse);
+                        previousMetadataBytes = rawResponse.metadata.value;
+                    }
+                    // special case: some APIs fail to set either result or error
+                    // but set done = true (e.g. speech with silent file).
+                    // Don't hang forever in this case.
+                    if (rawResponse.done) {
+                        const error = new googleError_1.GoogleError('Long running operation has finished but there was no result');
+                        error.code = status_1.Status.UNKNOWN;
+                        setImmediate(emit, 'error', error);
+                        return;
+                    }
+                    setTimeout(() => {
+                        now = new Date();
+                        delay = Math.min(delay * delayMult, maxDelay);
+                        retry();
+                    }, delay);
+                    return;
+                }
+                setImmediate(emit, 'complete', result, metadata, rawResponse);
+            });
+        }
+        retry();
+    }
+    /**
+     * Wraps the `complete` and `error` events in a Promise.
+     *
+     * @return {promise} - Promise that resolves on operation completion and rejects
+     * on operation error.
+     */
+    promise() {
+        // tslint:disable-next-line variable-name
+        const PromiseCtor = this._callOptions.promise;
+        return new PromiseCtor((resolve, reject) => {
+            this.on('error', reject).on('complete', (result, metadata, rawResponse) => {
+                resolve([result, metadata, rawResponse]);
+            });
+        });
+    }
+}
+exports.Operation = Operation;
+/**
+ * Method used to create Operation objects.
+ *
+ * @constructor
+ *
+ * @param {google.longrunning.Operation} op - The operation to be wrapped.
+ * @param {LongRunningDescriptor} longrunningDescriptor - This defines the
+ * operations service client and unpacking mechanisms for the operation.
+ * @param {BackoffSettings} backoffSettings - The backoff settings used in
+ * in polling the operation.
+ * @param {CallOptions=} callOptions - CallOptions used in making get operation
+ * requests.
+ */
+function operation(op, longrunningDescriptor, backoffSettings, callOptions) {
+    return new Operation(op, longrunningDescriptor, backoffSettings, callOptions);
+}
+exports.operation = operation;
+//# sourceMappingURL=longrunning.js.map

node_modules/google-gax/build/src/normalCalls/normalApiCaller.d.ts

@@ -0,0 +1,16 @@
+import { APICaller, ApiCallerSettings } from '../apiCaller';
+import { APICallback, GRPCCall, SimpleCallbackFunction } from '../apitypes';
+import { OngoingCall, OngoingCallPromise } from '../call';
+import { GoogleError } from '../googleError';
+/**
+ * Creates an API caller for regular unary methods.
+ */
+export declare class NormalApiCaller implements APICaller {
+    init(settings: ApiCallerSettings, callback?: APICallback): OngoingCallPromise | OngoingCall;
+    wrap(func: GRPCCall): GRPCCall;
+    call(apiCall: SimpleCallbackFunction, argument: {}, settings: {}, canceller: OngoingCallPromise): void;
+    fail(canceller: OngoingCallPromise, err: GoogleError): void;
+    result(canceller: OngoingCallPromise): import("../call").CancellablePromise<[import("../apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import("..").Operation | undefined]>;
+}

node_modules/google-gax/build/src/normalCalls/normalApiCaller.js

@@ -0,0 +1,28 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const call_1 = require("../call");
+/**
+ * Creates an API caller for regular unary methods.
+ */
+class NormalApiCaller {
+    init(settings, callback) {
+        if (callback) {
+            return new call_1.OngoingCall(callback);
+        }
+        return new call_1.OngoingCallPromise(settings.promise);
+    }
+    wrap(func) {
+        return func;
+    }
+    call(apiCall, argument, settings, canceller) {
+        canceller.call(apiCall, argument);
+    }
+    fail(canceller, err) {
+        canceller.callback(err);
+    }
+    result(canceller) {
+        return canceller.promise;
+    }
+}
+exports.NormalApiCaller = NormalApiCaller;
+//# sourceMappingURL=normalApiCaller.js.map

node_modules/google-gax/build/src/normalCalls/normalApiCaller.js.map

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node_modules/google-gax/build/src/normalCalls/retries.d.ts

@@ -0,0 +1,16 @@
+import { GRPCCall, GRPCCallOtherArgs, SimpleCallbackFunction } from '../apitypes';
+import { RetryOptions } from '../gax';
+/**
+ * Creates a function equivalent to func, but that retries on certain
+ * exceptions.
+ *
+ * @private
+ *
+ * @param {GRPCCall} func - A function.
+ * @param {RetryOptions} retry - Configures the exceptions upon which the
+ *   function eshould retry, and the parameters to the exponential backoff retry
+ *   algorithm.
+ * @param {GRPCCallOtherArgs} otherArgs - the additional arguments to be passed to func.
+ * @return {SimpleCallbackFunction} A function that will retry.
+ */
+export declare function retryable(func: GRPCCall, retry: RetryOptions, otherArgs: GRPCCallOtherArgs): SimpleCallbackFunction;

node_modules/google-gax/build/src/normalCalls/retries.js

@@ -0,0 +1,145 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const status_1 = require("../status");
+const googleError_1 = require("../googleError");
+const timeout_1 = require("./timeout");
+/**
+ * Creates a function equivalent to func, but that retries on certain
+ * exceptions.
+ *
+ * @private
+ *
+ * @param {GRPCCall} func - A function.
+ * @param {RetryOptions} retry - Configures the exceptions upon which the
+ *   function eshould retry, and the parameters to the exponential backoff retry
+ *   algorithm.
+ * @param {GRPCCallOtherArgs} otherArgs - the additional arguments to be passed to func.
+ * @return {SimpleCallbackFunction} A function that will retry.
+ */
+function retryable(func, retry, otherArgs) {
+    const delayMult = retry.backoffSettings.retryDelayMultiplier;
+    const maxDelay = retry.backoffSettings.maxRetryDelayMillis;
+    const timeoutMult = retry.backoffSettings.rpcTimeoutMultiplier;
+    const maxTimeout = retry.backoffSettings.maxRpcTimeoutMillis;
+    let delay = retry.backoffSettings.initialRetryDelayMillis;
+    let timeout = retry.backoffSettings.initialRpcTimeoutMillis;
+    /**
+     * Equivalent to ``func``, but retries upon transient failure.
+     *
+     * Retrying is done through an exponential backoff algorithm configured
+     * by the options in ``retry``.
+     * @param {RequestType} argument The request object.
+     * @param {APICallback} callback The callback.
+     * @return {GRPCCall}
+     */
+    return (argument, callback) => {
+        let canceller;
+        let timeoutId;
+        let now = new Date();
+        let deadline;
+        if (retry.backoffSettings.totalTimeoutMillis) {
+            deadline = now.getTime() + retry.backoffSettings.totalTimeoutMillis;
+        }
+        let retries = 0;
+        const maxRetries = retry.backoffSettings.maxRetries;
+        // TODO: define A/B testing values for retry behaviors.
+        /** Repeat the API call as long as necessary. */
+        function repeat() {
+            timeoutId = null;
+            if (deadline && now.getTime() >= deadline) {
+                const error = new googleError_1.GoogleError('Retry total timeout exceeded before any response was received');
+                error.code = status_1.Status.DEADLINE_EXCEEDED;
+                callback(error);
+                return;
+            }
+            if (retries && retries >= maxRetries) {
+                const error = new googleError_1.GoogleError('Exceeded maximum number of retries before any ' +
+                    'response was received');
+                error.code = status_1.Status.DEADLINE_EXCEEDED;
+                callback(error);
+                return;
+            }
+            retries++;
+            const toCall = timeout_1.addTimeoutArg(func, timeout, otherArgs);
+            canceller = toCall(argument, (err, response, next, rawResponse) => {
+                if (!err) {
+                    callback(null, response, next, rawResponse);
+                    return;
+                }
+                canceller = null;
+                if (retry.retryCodes.indexOf(err.code) < 0) {
+                    err.note =
+                        'Exception occurred in retry method that was ' +
+                            'not classified as transient';
+                    callback(err);
+                }
+                else {
+                    const toSleep = Math.random() * delay;
+                    // @ts-ignore
+                    timeoutId = setTimeout(() => {
+                        now = new Date();
+                        delay = Math.min(delay * delayMult, maxDelay);
+                        timeout = Math.min(timeout * timeoutMult, maxTimeout, deadline - now.getTime());
+                        repeat();
+                    }, toSleep);
+                }
+            });
+        }
+        if (maxRetries && deadline) {
+            const error = new googleError_1.GoogleError('Cannot set both totalTimeoutMillis and maxRetries ' +
+                'in backoffSettings.');
+            error.code = status_1.Status.INVALID_ARGUMENT;
+            callback(error);
+        }
+        else {
+            repeat();
+        }
+        return {
+            cancel() {
+                if (timeoutId) {
+                    clearTimeout(timeoutId);
+                }
+                if (canceller) {
+                    canceller.cancel();
+                }
+                else {
+                    const error = new googleError_1.GoogleError('cancelled');
+                    error.code = status_1.Status.CANCELLED;
+                    callback(error);
+                }
+            },
+        };
+    };
+}
+exports.retryable = retryable;
+//# sourceMappingURL=retries.js.map

node_modules/google-gax/build/src/normalCalls/retries.js.map

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node_modules/google-gax/build/src/normalCalls/timeout.d.ts

@@ -0,0 +1,17 @@
+import { GRPCCall, GRPCCallOtherArgs, SimpleCallbackFunction } from '../apitypes';
+/**
+ * Updates func so that it gets called with the timeout as its final arg.
+ *
+ * This converts a function, func, into another function with updated deadline.
+ *
+ * @private
+ *
+ * @param {GRPCCall} func - a function to be updated.
+ * @param {number} timeout - to be added to the original function as it final
+ *   positional arg.
+ * @param {Object} otherArgs - the additional arguments to be passed to func.
+ * @param {Object=} abTests - the A/B testing key/value pairs.
+ * @return {function(Object, APICallback)}
+ *  the function with other arguments and the timeout.
+ */
+export declare function addTimeoutArg(func: GRPCCall, timeout: number, otherArgs: GRPCCallOtherArgs, abTests?: {}): SimpleCallbackFunction;

node_modules/google-gax/build/src/normalCalls/timeout.js

@@ -0,0 +1,62 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Updates func so that it gets called with the timeout as its final arg.
+ *
+ * This converts a function, func, into another function with updated deadline.
+ *
+ * @private
+ *
+ * @param {GRPCCall} func - a function to be updated.
+ * @param {number} timeout - to be added to the original function as it final
+ *   positional arg.
+ * @param {Object} otherArgs - the additional arguments to be passed to func.
+ * @param {Object=} abTests - the A/B testing key/value pairs.
+ * @return {function(Object, APICallback)}
+ *  the function with other arguments and the timeout.
+ */
+function addTimeoutArg(func, timeout, otherArgs, abTests) {
+    // TODO: this assumes the other arguments consist of metadata and options,
+    // which is specific to gRPC calls. Remove the hidden dependency on gRPC.
+    return (argument, callback) => {
+        const now = new Date();
+        const options = otherArgs.options || {};
+        options.deadline = new Date(now.getTime() + timeout);
+        const metadata = otherArgs.metadataBuilder
+            ? otherArgs.metadataBuilder(abTests, otherArgs.headers || {})
+            : null;
+        return func(argument, metadata, options, callback);
+    };
+}
+exports.addTimeoutArg = addTimeoutArg;
+//# sourceMappingURL=timeout.js.map

node_modules/google-gax/build/src/normalCalls/timeout.js.map

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node_modules/google-gax/build/src/operationsClient.d.ts

@@ -0,0 +1,275 @@
+/// <reference types="node" />
+import { GoogleAuth, OAuth2Client } from 'google-auth-library';
+import { ProjectIdCallback } from 'google-auth-library/build/src/auth/googleauth';
+import * as gax from './gax';
+import { GrpcClient } from './grpc';
+import { GrpcClient as FallbackGrpcClient } from './fallback';
+export declare const SERVICE_ADDRESS = "longrunning.googleapis.com";
+/**
+ * The scopes needed to make gRPC calls to all of the methods defined in
+ * this service.
+ */
+export declare const ALL_SCOPES: string[];
+export interface OperationsClientOptions {
+    libName?: string;
+    libVersion?: string;
+    clientConfig: gax.ClientConfig;
+    fallback?: boolean;
+}
+/**
+ * Manages long-running operations with an API service.
+ *
+ * When an API method normally takes long time to complete, it can be designed
+ * to return {@link Operation} to the client, and the client can use this
+ * interface to receive the real response asynchronously by polling the
+ * operation resource, or pass the operation resource to another API (such as
+ * Google Cloud Pub/Sub API) to receive the response.  Any API service that
+ * returns long-running operations should implement the `Operations` interface
+ * so developers can have a consistent client experience.
+ *
+ * This will be created through a builder function which can be obtained by the
+ * module. See the following example of how to initialize the module and how to
+ * access to the builder.
+ * @see {@link operationsClient}
+ *
+ * @class
+ */
+export declare class OperationsClient {
+    auth?: GoogleAuth | OAuth2Client;
+    private _innerApiCalls;
+    constructor(gaxGrpc: GrpcClient | FallbackGrpcClient, operationsProtos: any, options: OperationsClientOptions);
+    /**
+     * Get the project ID used by this class.
+     * @param {function(Error, string)} callback - the callback to be called with
+     *   the current project Id.
+     */
+    getProjectId(): Promise<string>;
+    getProjectId(callback: ProjectIdCallback): void;
+    /**
+     * Gets the latest state of a long-running operation.  Clients can use this
+     * method to poll the operation result at intervals as recommended by the API
+     * service.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation resource.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     *   details.
+     * @param {function(?Error, ?Object)=} callback
+     *   The function which will be called with the result of the API call.
+     *
+     *   The second parameter to the callback is an object representing
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}.
+     * @return {Promise} - The promise which resolves to an array.
+     *   The first element of the array is an object representing
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}. The promise has a method named
+     * "cancel" which cancels the ongoing API call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * const name = '';
+     * const [response] = await client.getOperation({name});
+     * // doThingsWith(response)
+     */
+    getOperation(request: {}, options: {}, callback?: any): import("./call").CancellablePromise<[import("./apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import(".").Operation | undefined]> | import("./apitypes").CancellableStream;
+    /**
+     * Lists operations that match the specified filter in the request. If the
+     * server doesn't support this method, it returns `UNIMPLEMENTED`.
+     *
+     * NOTE: the `name` binding below allows API services to override the binding
+     * to use different resource name schemes.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation collection.
+     * @param {string} request.filter - The standard list filter.
+     * @param {number=} request.pageSize
+     *   The maximum number of resources contained in the underlying API
+     *   response. If page streaming is performed per-resource, this
+     *   parameter does not affect the return value. If page streaming is
+     *   performed per-page, this determines the maximum number of
+     *   resources in a page.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     * details.
+     * @param {function(?Error, ?Array, ?Object, ?Object)=} callback
+     *   The function which will be called with the result of the API call.
+     *
+     *   The second parameter to the callback is Array of
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}.
+     *
+     *   When autoPaginate: false is specified through options, it contains the
+     * result in a single response. If the response indicates the next page
+     * exists, the third parameter is set to be used for the next request object.
+     * The fourth parameter keeps the raw response object of an object
+     * representing [google.longrunning.ListOperationsResponse]{@link
+     * external:"google.longrunning.ListOperationsResponse"}.
+     * @return {Promise} - The promise which resolves to an array.
+     *   The first element of the array is Array of
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}.
+     *
+     *   When autoPaginate: false is specified through options, the array has
+     * three elements. The first element is Array of
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"} in a single response. The second
+     * element is the next request object if the response indicates the next page
+     * exists, or null. The third element is an object representing
+     * [google.longrunning.ListOperationsResponse]{@link
+     * external:"google.longrunning.ListOperationsResponse"}.
+     *
+     *   The promise has a method named "cancel" which cancels the ongoing API
+     * call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * const request = {
+     *     name: '',
+     *     filter: ''
+     * };
+     * // Iterate over all elements.
+     * const [resources] = await client.listOperations(request);
+     * for (const resource of resources) {
+     *   console.log(resources);
+     * }
+     *
+     * // Or obtain the paged response.
+     * const options = {autoPaginate: false};
+     * let nextRequest = request;
+     * while(nextRequest) {
+     *   const response = await client.listOperations(nextRequest, options);
+     *   const resources = response[0];
+     *   nextRequest = response[1];
+     *   const rawResponse = response[2];
+     *   for (const resource of resources) {
+     *     // doThingsWith(resource);
+     *   }
+     * };
+     */
+    listOperations(request: any, options: any, callback: any): import("./call").CancellablePromise<[import("./apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import(".").Operation | undefined]> | import("./apitypes").CancellableStream;
+    /**
+     * Equivalent to {@link listOperations}, but returns a NodeJS Stream object.
+     *
+     * This fetches the paged responses for {@link listOperations} continuously
+     * and invokes the callback registered for 'data' event for each element in
+     * the responses.
+     *
+     * The returned object has 'end' method when no more elements are required.
+     *
+     * autoPaginate option will be ignored.
+     *
+     * @see {@link https://nodejs.org/api/stream.html}
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation collection.
+     * @param {string} request.filter - The standard list filter.
+     * @param {number=} request.pageSize -
+     *   The maximum number of resources contained in the underlying API
+     *   response. If page streaming is performed per-resource, this
+     *   parameter does not affect the return value. If page streaming is
+     *   performed per-page, this determines the maximum number of
+     *   resources in a page.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     *   details.
+     * @return {Stream} - An object stream which emits an object representing [google.longrunning.Operation]{@link external:"google.longrunning.Operation"} on 'data' event.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * const request = {
+     *   name: '',
+     *   filter: ''
+     * };
+     * client.listOperationsStream(request)
+     *   .on('data', element => {
+     *     // doThingsWith(element)
+     *   })
+     *   .on('error', err => {
+     *     console.error(err);
+     *   });
+     */
+    listOperationsStream(request: {}, options: gax.CallSettings): import("stream").Transform;
+    /**
+     * Starts asynchronous cancellation on a long-running operation.  The server
+     * makes a best effort to cancel the operation, but success is not
+     * guaranteed.  If the server doesn't support this method, it returns
+     * `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
+     * {@link Operations.GetOperation} or
+     * other methods to check whether the cancellation succeeded or whether the
+     * operation completed despite cancellation. On successful cancellation,
+     * the operation is not deleted; instead, it becomes an operation with
+     * an {@link Operation.error} value with a {@link google.rpc.Status.code} of
+     * 1, corresponding to `Code.CANCELLED`.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation resource to be cancelled.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     * details.
+     * @param {function(?Error)=} callback
+     *   The function which will be called with the result of the API call.
+     * @return {Promise} - The promise which resolves when API call finishes.
+     *   The promise has a method named "cancel" which cancels the ongoing API
+     * call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * await client.cancelOperation({name: ''});
+     */
+    cancelOperation(request: any, options?: any, callback?: any): import("./call").CancellablePromise<[import("./apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import(".").Operation | undefined]> | import("./apitypes").CancellableStream;
+    /**
+     * Deletes a long-running operation. This method indicates that the client is
+     * no longer interested in the operation result. It does not cancel the
+     * operation. If the server doesn't support this method, it returns
+     * `google.rpc.Code.UNIMPLEMENTED`.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation resource to be deleted.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     * details.
+     * @param {function(?Error)=} callback
+     *   The function which will be called with the result of the API call.
+     * @return {Promise} - The promise which resolves when API call finishes.
+     *   The promise has a method named "cancel" which cancels the ongoing API
+     * call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * await client.deleteOperation({name: ''});
+     */
+    deleteOperation(request: any, options: any, callback: any): import("./call").CancellablePromise<[import("./apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import(".").Operation | undefined]> | import("./apitypes").CancellableStream;
+}
+export declare class OperationsClientBuilder {
+    operationsClient: (opts: OperationsClientOptions) => OperationsClient;
+    /**
+     * Builds a new Operations Client
+     * @param gaxGrpc {GrpcClient}
+     */
+    constructor(gaxGrpc: GrpcClient | FallbackGrpcClient);
+}

node_modules/google-gax/build/src/operationsClient.js

@@ -0,0 +1,403 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const path = require("path");
+const createApiCall_1 = require("./createApiCall");
+const descriptor_1 = require("./descriptor");
+const configData = require('./operations_client_config');
+exports.SERVICE_ADDRESS = 'longrunning.googleapis.com';
+const version = require('../../package.json').version;
+const DEFAULT_SERVICE_PORT = 443;
+const CODE_GEN_NAME_VERSION = 'gapic/0.7.1';
+const PAGE_DESCRIPTORS = {
+    listOperations: new descriptor_1.PageDescriptor('pageToken', 'nextPageToken', 'operations'),
+};
+/**
+ * The scopes needed to make gRPC calls to all of the methods defined in
+ * this service.
+ */
+exports.ALL_SCOPES = [];
+/**
+ * Manages long-running operations with an API service.
+ *
+ * When an API method normally takes long time to complete, it can be designed
+ * to return {@link Operation} to the client, and the client can use this
+ * interface to receive the real response asynchronously by polling the
+ * operation resource, or pass the operation resource to another API (such as
+ * Google Cloud Pub/Sub API) to receive the response.  Any API service that
+ * returns long-running operations should implement the `Operations` interface
+ * so developers can have a consistent client experience.
+ *
+ * This will be created through a builder function which can be obtained by the
+ * module. See the following example of how to initialize the module and how to
+ * access to the builder.
+ * @see {@link operationsClient}
+ *
+ * @class
+ */
+class OperationsClient {
+    constructor(gaxGrpc, 
+    // tslint:disable-next-line no-any
+    operationsProtos, options) {
+        const opts = Object.assign({
+            servicePath: exports.SERVICE_ADDRESS,
+            port: DEFAULT_SERVICE_PORT,
+            clientConfig: {},
+        }, options);
+        const googleApiClient = ['gl-node/' + process.versions.node];
+        if (opts.libName && opts.libVersion) {
+            googleApiClient.push(opts.libName + '/' + opts.libVersion);
+        }
+        googleApiClient.push(CODE_GEN_NAME_VERSION, 'gax/' + version);
+        if (opts.fallback) {
+            googleApiClient.push('gl-web/' + version);
+        }
+        else {
+            googleApiClient.push('grpc/' + gaxGrpc.grpcVersion);
+        }
+        const defaults = gaxGrpc.constructSettings('google.longrunning.Operations', configData, opts.clientConfig, { 'x-goog-api-client': googleApiClient.join(' ') });
+        this.auth = gaxGrpc.auth;
+        // Set up a dictionary of "inner API calls"; the core implementation
+        // of calling the API is handled in `google-gax`, with this code
+        // merely providing the destination and request information.
+        this._innerApiCalls = {};
+        // Put together the "service stub" for
+        // google.longrunning.Operations.
+        const operationsStub = gaxGrpc.createStub(opts.fallback
+            ? operationsProtos.lookupService('google.longrunning.Operations')
+            : operationsProtos.google.longrunning.Operations, opts);
+        const operationsStubMethods = [
+            'getOperation',
+            'listOperations',
+            'cancelOperation',
+            'deleteOperation',
+        ];
+        for (const methodName of operationsStubMethods) {
+            const innerCallPromise = operationsStub.then(stub => (...args) => {
+                return stub[methodName].apply(stub, args);
+            }, err => () => {
+                throw err;
+            });
+            this._innerApiCalls[methodName] = createApiCall_1.createApiCall(innerCallPromise, defaults[methodName], PAGE_DESCRIPTORS[methodName]);
+        }
+    }
+    getProjectId(callback) {
+        if (this.auth && 'getProjectId' in this.auth) {
+            return this.auth.getProjectId(callback);
+        }
+        if (callback) {
+            callback(new Error('Cannot determine project ID.'));
+        }
+        else {
+            return Promise.reject('Cannot determine project ID.');
+        }
+    }
+    // Service calls
+    /**
+     * Gets the latest state of a long-running operation.  Clients can use this
+     * method to poll the operation result at intervals as recommended by the API
+     * service.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation resource.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     *   details.
+     * @param {function(?Error, ?Object)=} callback
+     *   The function which will be called with the result of the API call.
+     *
+     *   The second parameter to the callback is an object representing
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}.
+     * @return {Promise} - The promise which resolves to an array.
+     *   The first element of the array is an object representing
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}. The promise has a method named
+     * "cancel" which cancels the ongoing API call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * const name = '';
+     * const [response] = await client.getOperation({name});
+     * // doThingsWith(response)
+     */
+    getOperation(request, options, callback) {
+        if (options instanceof Function && callback === undefined) {
+            callback = options;
+            options = {};
+        }
+        options = options || {};
+        return this._innerApiCalls.getOperation(request, options, callback);
+    }
+    /**
+     * Lists operations that match the specified filter in the request. If the
+     * server doesn't support this method, it returns `UNIMPLEMENTED`.
+     *
+     * NOTE: the `name` binding below allows API services to override the binding
+     * to use different resource name schemes.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation collection.
+     * @param {string} request.filter - The standard list filter.
+     * @param {number=} request.pageSize
+     *   The maximum number of resources contained in the underlying API
+     *   response. If page streaming is performed per-resource, this
+     *   parameter does not affect the return value. If page streaming is
+     *   performed per-page, this determines the maximum number of
+     *   resources in a page.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     * details.
+     * @param {function(?Error, ?Array, ?Object, ?Object)=} callback
+     *   The function which will be called with the result of the API call.
+     *
+     *   The second parameter to the callback is Array of
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}.
+     *
+     *   When autoPaginate: false is specified through options, it contains the
+     * result in a single response. If the response indicates the next page
+     * exists, the third parameter is set to be used for the next request object.
+     * The fourth parameter keeps the raw response object of an object
+     * representing [google.longrunning.ListOperationsResponse]{@link
+     * external:"google.longrunning.ListOperationsResponse"}.
+     * @return {Promise} - The promise which resolves to an array.
+     *   The first element of the array is Array of
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"}.
+     *
+     *   When autoPaginate: false is specified through options, the array has
+     * three elements. The first element is Array of
+     * [google.longrunning.Operation]{@link
+     * external:"google.longrunning.Operation"} in a single response. The second
+     * element is the next request object if the response indicates the next page
+     * exists, or null. The third element is an object representing
+     * [google.longrunning.ListOperationsResponse]{@link
+     * external:"google.longrunning.ListOperationsResponse"}.
+     *
+     *   The promise has a method named "cancel" which cancels the ongoing API
+     * call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * const request = {
+     *     name: '',
+     *     filter: ''
+     * };
+     * // Iterate over all elements.
+     * const [resources] = await client.listOperations(request);
+     * for (const resource of resources) {
+     *   console.log(resources);
+     * }
+     *
+     * // Or obtain the paged response.
+     * const options = {autoPaginate: false};
+     * let nextRequest = request;
+     * while(nextRequest) {
+     *   const response = await client.listOperations(nextRequest, options);
+     *   const resources = response[0];
+     *   nextRequest = response[1];
+     *   const rawResponse = response[2];
+     *   for (const resource of resources) {
+     *     // doThingsWith(resource);
+     *   }
+     * };
+     */
+    listOperations(request, options, callback) {
+        if (options instanceof Function && callback === undefined) {
+            callback = options;
+            options = {};
+        }
+        options = options || {};
+        return this._innerApiCalls.listOperations(request, options, callback);
+    }
+    /**
+     * Equivalent to {@link listOperations}, but returns a NodeJS Stream object.
+     *
+     * This fetches the paged responses for {@link listOperations} continuously
+     * and invokes the callback registered for 'data' event for each element in
+     * the responses.
+     *
+     * The returned object has 'end' method when no more elements are required.
+     *
+     * autoPaginate option will be ignored.
+     *
+     * @see {@link https://nodejs.org/api/stream.html}
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation collection.
+     * @param {string} request.filter - The standard list filter.
+     * @param {number=} request.pageSize -
+     *   The maximum number of resources contained in the underlying API
+     *   response. If page streaming is performed per-resource, this
+     *   parameter does not affect the return value. If page streaming is
+     *   performed per-page, this determines the maximum number of
+     *   resources in a page.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     *   details.
+     * @return {Stream} - An object stream which emits an object representing [google.longrunning.Operation]{@link external:"google.longrunning.Operation"} on 'data' event.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * const request = {
+     *   name: '',
+     *   filter: ''
+     * };
+     * client.listOperationsStream(request)
+     *   .on('data', element => {
+     *     // doThingsWith(element)
+     *   })
+     *   .on('error', err => {
+     *     console.error(err);
+     *   });
+     */
+    listOperationsStream(request, options) {
+        return PAGE_DESCRIPTORS.listOperations.createStream(this._innerApiCalls.listOperations, request, options);
+    }
+    /**
+     * Starts asynchronous cancellation on a long-running operation.  The server
+     * makes a best effort to cancel the operation, but success is not
+     * guaranteed.  If the server doesn't support this method, it returns
+     * `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
+     * {@link Operations.GetOperation} or
+     * other methods to check whether the cancellation succeeded or whether the
+     * operation completed despite cancellation. On successful cancellation,
+     * the operation is not deleted; instead, it becomes an operation with
+     * an {@link Operation.error} value with a {@link google.rpc.Status.code} of
+     * 1, corresponding to `Code.CANCELLED`.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation resource to be cancelled.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     * details.
+     * @param {function(?Error)=} callback
+     *   The function which will be called with the result of the API call.
+     * @return {Promise} - The promise which resolves when API call finishes.
+     *   The promise has a method named "cancel" which cancels the ongoing API
+     * call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * await client.cancelOperation({name: ''});
+     */
+    cancelOperation(request, options, callback) {
+        if (options instanceof Function && callback === undefined) {
+            callback = options;
+            options = {};
+        }
+        options = options || {};
+        return this._innerApiCalls.cancelOperation(request, options, callback);
+    }
+    /**
+     * Deletes a long-running operation. This method indicates that the client is
+     * no longer interested in the operation result. It does not cancel the
+     * operation. If the server doesn't support this method, it returns
+     * `google.rpc.Code.UNIMPLEMENTED`.
+     *
+     * @param {Object} request - The request object that will be sent.
+     * @param {string} request.name - The name of the operation resource to be deleted.
+     * @param {Object=} options
+     *   Optional parameters. You can override the default settings for this call,
+     * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+     * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+     * details.
+     * @param {function(?Error)=} callback
+     *   The function which will be called with the result of the API call.
+     * @return {Promise} - The promise which resolves when API call finishes.
+     *   The promise has a method named "cancel" which cancels the ongoing API
+     * call.
+     *
+     * @example
+     *
+     * const client = longrunning.operationsClient();
+     * await client.deleteOperation({name: ''});
+     */
+    deleteOperation(request, options, callback) {
+        if (options instanceof Function && callback === undefined) {
+            callback = options;
+            options = {};
+        }
+        options = options || {};
+        return this._innerApiCalls.deleteOperation(request, options, callback);
+    }
+}
+exports.OperationsClient = OperationsClient;
+class OperationsClientBuilder {
+    /**
+     * Builds a new Operations Client
+     * @param gaxGrpc {GrpcClient}
+     */
+    constructor(gaxGrpc) {
+        // tslint:disable-next-line no-any
+        let operationsProtos; // loaded protos have any type
+        if (gaxGrpc.fallback) {
+            const protoJson = require('../../protos/operations.json');
+            operationsProtos = gaxGrpc.loadProto(protoJson);
+        }
+        else {
+            operationsProtos = gaxGrpc.loadProto(path.join(__dirname, '..', '..', 'protos', 'operations.json'));
+            Object.assign(this, operationsProtos.google.longrunning);
+        }
+        /**
+         * Build a new instance of {@link OperationsClient}.
+         *
+         * @param {Object=} opts - The optional parameters.
+         * @param {String=} opts.servicePath - Domain name of the API remote host.
+         * @param {number=} opts.port - The port on which to connect to the remote host.
+         * @param {grpc.ClientCredentials=} opts.sslCreds - A ClientCredentials for use with an SSL-enabled channel.
+         * @param {Object=} opts.clientConfig - The customized config to build the call settings. See {@link gax.constructSettings} for the format.
+         */
+        this.operationsClient = opts => {
+            if (gaxGrpc.fallback) {
+                opts.fallback = true;
+            }
+            return new OperationsClient(gaxGrpc, operationsProtos, opts);
+        };
+        Object.assign(this.operationsClient, OperationsClient);
+    }
+}
+exports.OperationsClientBuilder = OperationsClientBuilder;
+//# sourceMappingURL=operationsClient.js.map

node_modules/google-gax/build/src/operationsClient.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/operations_client_config.json

@@ -0,0 +1,46 @@
+{
+  "interfaces": {
+    "google.longrunning.Operations": {
+      "retry_codes": {
+        "idempotent": [
+          "DEADLINE_EXCEEDED",
+          "UNAVAILABLE"
+        ],
+        "non_idempotent": []
+      },
+      "retry_params": {
+        "default": {
+          "initial_retry_delay_millis": 100,
+          "retry_delay_multiplier": 1.3,
+          "max_retry_delay_millis": 60000,
+          "initial_rpc_timeout_millis": 90000,
+          "rpc_timeout_multiplier": 1.0,
+          "max_rpc_timeout_millis": 90000,
+          "total_timeout_millis": 600000
+        }
+      },
+      "methods": {
+        "GetOperation": {
+          "timeout_millis": 60000,
+          "retry_codes_name": "idempotent",
+          "retry_params_name": "default"
+        },
+        "ListOperations": {
+          "timeout_millis": 60000,
+          "retry_codes_name": "idempotent",
+          "retry_params_name": "default"
+        },
+        "CancelOperation": {
+          "timeout_millis": 60000,
+          "retry_codes_name": "idempotent",
+          "retry_params_name": "default"
+        },
+        "DeleteOperation": {
+          "timeout_millis": 60000,
+          "retry_codes_name": "idempotent",
+          "retry_params_name": "default"
+        }
+      }
+    }
+  }
+}

node_modules/google-gax/build/src/paginationCalls/pageDescriptor.d.ts

@@ -0,0 +1,21 @@
+/// <reference types="node" />
+import { Transform } from 'stream';
+import { APICaller } from '../apiCaller';
+import { GaxCall } from '../apitypes';
+import { Descriptor } from '../descriptor';
+import { CallSettings } from '../gax';
+/**
+ * A descriptor for methods that support pagination.
+ */
+export declare class PageDescriptor implements Descriptor {
+    requestPageTokenField: string;
+    responsePageTokenField: string;
+    requestPageSizeField?: string;
+    resourceField: string;
+    constructor(requestPageTokenField: string, responsePageTokenField: string, resourceField: string);
+    /**
+     * Creates a new object Stream which emits the resource on 'data' event.
+     */
+    createStream(apiCall: GaxCall, request: {}, options: CallSettings): Transform;
+    getApiCaller(settings: CallSettings): APICaller;
+}

node_modules/google-gax/build/src/paginationCalls/pageDescriptor.js

@@ -0,0 +1,109 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const ended = require("is-stream-ended");
+const stream_1 = require("stream");
+const normalApiCaller_1 = require("../normalCalls/normalApiCaller");
+const pagedApiCaller_1 = require("./pagedApiCaller");
+/**
+ * A descriptor for methods that support pagination.
+ */
+class PageDescriptor {
+    constructor(requestPageTokenField, responsePageTokenField, resourceField) {
+        this.requestPageTokenField = requestPageTokenField;
+        this.responsePageTokenField = responsePageTokenField;
+        this.resourceField = resourceField;
+    }
+    /**
+     * Creates a new object Stream which emits the resource on 'data' event.
+     */
+    createStream(apiCall, request, options) {
+        const stream = new stream_1.PassThrough({ objectMode: true });
+        options = Object.assign({}, options, { autoPaginate: false });
+        const maxResults = 'maxResults' in options ? options.maxResults : -1;
+        let pushCount = 0;
+        let started = false;
+        function callback(err, resources, next) {
+            if (err) {
+                stream.emit('error', err);
+                return;
+            }
+            for (let i = 0; i < resources.length; ++i) {
+                if (ended(stream)) {
+                    return;
+                }
+                if (resources[i] === null) {
+                    continue;
+                }
+                stream.push(resources[i]);
+                pushCount++;
+                if (pushCount === maxResults) {
+                    stream.end();
+                }
+            }
+            if (ended(stream)) {
+                return;
+            }
+            if (!next) {
+                stream.end();
+                return;
+            }
+            // When pageToken is specified in the original options, it will overwrite
+            // the page token field in the next request. Therefore it must be cleared.
+            if ('pageToken' in options) {
+                delete options.pageToken;
+            }
+            if (stream.isPaused()) {
+                request = next;
+                started = false;
+            }
+            else {
+                setImmediate(apiCall, next, options, callback);
+            }
+        }
+        stream.on('resume', () => {
+            if (!started) {
+                started = true;
+                apiCall(request, options, callback);
+            }
+        });
+        return stream;
+    }
+    getApiCaller(settings) {
+        if (!settings.autoPaginate) {
+            return new normalApiCaller_1.NormalApiCaller();
+        }
+        return new pagedApiCaller_1.PagedApiCaller(this);
+    }
+}
+exports.PageDescriptor = PageDescriptor;
+//# sourceMappingURL=pageDescriptor.js.map

node_modules/google-gax/build/src/paginationCalls/pageDescriptor.js.map

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node_modules/google-gax/build/src/paginationCalls/pagedApiCaller.d.ts

@@ -0,0 +1,29 @@
+import { APICaller, ApiCallerSettings } from '../apiCaller';
+import { GRPCCall, SimpleCallbackFunction } from '../apitypes';
+import { APICallback } from '../apitypes';
+import { OngoingCall, OngoingCallPromise } from '../call';
+import { CallOptions } from '../gax';
+import { GoogleError } from '../googleError';
+import { PageDescriptor } from './pageDescriptor';
+export declare class PagedApiCaller implements APICaller {
+    pageDescriptor: PageDescriptor;
+    /**
+     * Creates an API caller that returns a stream to performs page-streaming.
+     *
+     * @private
+     * @constructor
+     * @param {PageDescriptor} pageDescriptor - indicates the structure
+     *   of page streaming to be performed.
+     */
+    constructor(pageDescriptor: PageDescriptor);
+    private createActualCallback;
+    wrap(func: GRPCCall): GRPCCall;
+    init(settings: ApiCallerSettings, callback?: APICallback): OngoingCall;
+    call(apiCall: SimpleCallbackFunction, argument: {
+        [index: string]: {};
+    }, settings: CallOptions, canceller: OngoingCall): void;
+    fail(canceller: OngoingCallPromise, err: GoogleError): void;
+    result(canceller: OngoingCallPromise): import("../call").CancellablePromise<[import("../apitypes").ResponseType, {
+        [index: string]: string;
+    } | null | undefined, {} | import("..").Operation | undefined]>;
+}

node_modules/google-gax/build/src/paginationCalls/pagedApiCaller.js

@@ -0,0 +1,124 @@
+"use strict";
+/*
+ * Copyright 2019, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const call_1 = require("../call");
+const googleError_1 = require("../googleError");
+class PagedApiCaller {
+    /**
+     * Creates an API caller that returns a stream to performs page-streaming.
+     *
+     * @private
+     * @constructor
+     * @param {PageDescriptor} pageDescriptor - indicates the structure
+     *   of page streaming to be performed.
+     */
+    constructor(pageDescriptor) {
+        this.pageDescriptor = pageDescriptor;
+    }
+    createActualCallback(request, callback) {
+        const self = this;
+        return function fetchNextPageToken(err, response) {
+            if (err) {
+                callback(err);
+                return;
+            }
+            if (!response) {
+                callback(new googleError_1.GoogleError('Undefined response in pagination method callback.'));
+                return;
+            }
+            const resources = response[self.pageDescriptor.resourceField];
+            const pageToken = response[self.pageDescriptor.responsePageTokenField];
+            if (pageToken) {
+                request[self.pageDescriptor.requestPageTokenField] = pageToken;
+                callback(err, resources, request, response);
+            }
+            else {
+                callback(err, resources, null, response);
+            }
+        };
+    }
+    wrap(func) {
+        const self = this;
+        return function wrappedCall(argument, metadata, options, callback) {
+            return func(argument, metadata, options, self.createActualCallback(argument, callback));
+        };
+    }
+    init(settings, callback) {
+        if (callback) {
+            return new call_1.OngoingCall(callback);
+        }
+        return new call_1.OngoingCallPromise(settings.promise);
+    }
+    call(apiCall, argument, settings, canceller) {
+        argument = Object.assign({}, argument);
+        if (settings.pageToken) {
+            argument[this.pageDescriptor.requestPageTokenField] = settings.pageToken;
+        }
+        if (settings.pageSize) {
+            argument[this.pageDescriptor.requestPageSizeField] = settings.pageSize;
+        }
+        if (!settings.autoPaginate) {
+            // they don't want auto-pagination this time - okay, just call once
+            canceller.call(apiCall, argument);
+            return;
+        }
+        const maxResults = settings.maxResults || -1;
+        const allResources = [];
+        function pushResources(err, resources, next) {
+            if (err) {
+                canceller.callback(err);
+                return;
+            }
+            for (let i = 0; i < resources.length; ++i) {
+                allResources.push(resources[i]);
+                if (allResources.length === maxResults) {
+                    next = null;
+                    break;
+                }
+            }
+            if (!next) {
+                canceller.callback(null, allResources);
+                return;
+            }
+            setImmediate(apiCall, next, pushResources);
+        }
+        setImmediate(apiCall, argument, pushResources);
+    }
+    fail(canceller, err) {
+        canceller.callback(err);
+    }
+    result(canceller) {
+        return canceller.promise;
+    }
+}
+exports.PagedApiCaller = PagedApiCaller;
+//# sourceMappingURL=pagedApiCaller.js.map

node_modules/google-gax/build/src/paginationCalls/pagedApiCaller.js.map

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node_modules/google-gax/build/src/parserExtras.d.ts

@@ -0,0 +1,21 @@
+import { Segment } from './pathTemplate';
+export declare const BINDING = 1;
+export declare const END_BINDING = 2;
+export declare const TERMINAL = 3;
+/**
+ * Completes the parsing of the segments
+ *
+ * Validates them, and transforms them into the object used by the
+ * PathTemplate class.
+ *
+ * @private
+ *
+ * @param {Segments[]} segments the parsed segments
+ * @param {Object} initializes the attributes of a PathTemplate
+ * @return {Object} Returns segments and size
+ * @throws {TypeError} if multiple path wildcards exist
+ */
+export declare function finishParse(segments: Segment[]): {
+    segments: Segment[];
+    size: number;
+};

node_modules/google-gax/build/src/parserExtras.js

@@ -0,0 +1,109 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const util = require("util");
+/* constants used in the pegjs parser */
+exports.BINDING = 1;
+exports.END_BINDING = 2;
+exports.TERMINAL = 3;
+/**
+ * Checks that segments only has one terminal segment that is a path wildcard.
+ *
+ * @private
+ *
+ * @param {Segments[]} segments the parsed segments
+ * @throws {TypeError} if there are too many
+ */
+function allowOnePathWildcard(segments) {
+    let hasPathWildcard = false;
+    for (let i = 0; i < segments.length; i++) {
+        const s = segments[i];
+        if (s.kind !== exports.TERMINAL || s.literal !== '**') {
+            continue;
+        }
+        if (hasPathWildcard) {
+            const tooManyWildcards = 'cannot contain more than one path wildcard';
+            throw new TypeError(tooManyWildcards);
+        }
+        hasPathWildcard = true;
+    }
+}
+/**
+ * Counts the number of terminal segments.
+ *
+ * @private
+ *
+ * @param {Segments[]} segments the parsed segments
+ * @return {number} the number of terminal segments in the template
+ */
+function countTerminals(segments) {
+    return segments.filter(x => x.kind === exports.TERMINAL).length;
+}
+/**
+ * Updates missing literals of each of the binding segments.
+ *
+ * @private
+ *
+ * @param {Segments[]} segments the parsed segments
+ */
+function updateBindingLiterals(segments) {
+    let bindingIndex = 0;
+    segments.forEach(s => {
+        if (s.kind === exports.BINDING && !s.literal) {
+            s.literal = util.format('$%d', bindingIndex);
+            bindingIndex += 1;
+        }
+    });
+}
+/**
+ * Completes the parsing of the segments
+ *
+ * Validates them, and transforms them into the object used by the
+ * PathTemplate class.
+ *
+ * @private
+ *
+ * @param {Segments[]} segments the parsed segments
+ * @param {Object} initializes the attributes of a PathTemplate
+ * @return {Object} Returns segments and size
+ * @throws {TypeError} if multiple path wildcards exist
+ */
+function finishParse(segments) {
+    allowOnePathWildcard(segments);
+    updateBindingLiterals(segments);
+    return {
+        segments,
+        size: countTerminals(segments),
+    };
+}
+exports.finishParse = finishParse;
+//# sourceMappingURL=parserExtras.js.map

node_modules/google-gax/build/src/parserExtras.js.map

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node_modules/google-gax/build/src/pathTemplate.d.ts

@@ -0,0 +1,45 @@
+export interface ParseResult {
+    size: number;
+    segments: Segment[];
+}
+export interface Segment {
+    kind: number;
+    literal: string;
+}
+export interface Bindings {
+    [index: string]: string;
+}
+export declare class PathTemplate {
+    private readonly parseResult;
+    readonly size: number;
+    readonly segments: Segment[];
+    /**
+     * @param {String} data the of the template
+     *
+     * @constructor
+     */
+    constructor(data: string);
+    /**
+     * Matches a fully-qualified path template string.
+     *
+     * @param {String} path a fully-qualified path template string
+     * @return {Object} contains const names matched to binding values
+     * @throws {TypeError} if path can't be matched to this template
+     */
+    match(path: string): Bindings;
+    /**
+     * Renders a path template using the provided bindings.
+     *
+     * @param {Object} bindings a mapping of const names to binding strings
+     * @return {String} a rendered representation of the path template
+     * @throws {TypeError} if a key is missing, or if a sub-template cannot be
+     *   parsed
+     */
+    render(bindings: Bindings): string;
+    /**
+     * Renders the path template.
+     *
+     * @return {string} contains const names matched to binding values
+     */
+    inspect(): string;
+}

node_modules/google-gax/build/src/pathTemplate.js

@@ -0,0 +1,174 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+/*
+ * Path template utility.
+ */
+const has = require("lodash.has");
+const util = require("util");
+const extras = require("./parserExtras");
+const parser = require('./pathTemplateParser');
+class PathTemplate {
+    /**
+     * @param {String} data the of the template
+     *
+     * @constructor
+     */
+    constructor(data) {
+        this.parseResult = extras.finishParse(parser.parse(data));
+    }
+    get size() {
+        return this.parseResult.size;
+    }
+    get segments() {
+        return this.parseResult.segments;
+    }
+    /**
+     * Matches a fully-qualified path template string.
+     *
+     * @param {String} path a fully-qualified path template string
+     * @return {Object} contains const names matched to binding values
+     * @throws {TypeError} if path can't be matched to this template
+     */
+    match(path) {
+        const pathSegments = path.split('/');
+        const bindings = {};
+        let segmentCount = this.size;
+        let current;
+        let index = 0;
+        this.segments.forEach(segment => {
+            if (index > pathSegments.length) {
+                return;
+            }
+            if (segment.kind === extras.BINDING) {
+                current = segment.literal;
+            }
+            else if (segment.kind === extras.TERMINAL) {
+                if (segment.literal === '*') {
+                    bindings[current] = pathSegments[index];
+                    index += 1;
+                }
+                else if (segment.literal === '**') {
+                    const size = pathSegments.length - segmentCount + 1;
+                    segmentCount += size - 1;
+                    bindings[current] = pathSegments.slice(index, index + size).join('/');
+                    index += size;
+                }
+                else if (segment.literal === pathSegments[index]) {
+                    index += 1;
+                }
+                else {
+                    const msg = util.format("mismatched literal (index=%d): '%s' != '%s'", index, segment.literal, pathSegments[index]);
+                    throw new TypeError(msg);
+                }
+            }
+        });
+        if (index !== pathSegments.length || index !== segmentCount) {
+            const msg = util.format('match error: could not instantiate a path template from %s', path);
+            throw new TypeError(msg);
+        }
+        return bindings;
+    }
+    /**
+     * Renders a path template using the provided bindings.
+     *
+     * @param {Object} bindings a mapping of const names to binding strings
+     * @return {String} a rendered representation of the path template
+     * @throws {TypeError} if a key is missing, or if a sub-template cannot be
+     *   parsed
+     */
+    render(bindings) {
+        const out = [];
+        let inABinding = false;
+        this.segments.forEach(segment => {
+            if (segment.kind === extras.BINDING) {
+                if (!has(bindings, segment.literal)) {
+                    const msg = util.format('Value for key %s is not provided in %s', segment.literal, bindings);
+                    throw new TypeError(msg);
+                }
+                const tmp = new PathTemplate(bindings[segment.literal]);
+                Array.prototype.push.apply(out, tmp.segments);
+                inABinding = true;
+            }
+            else if (segment.kind === extras.END_BINDING) {
+                inABinding = false;
+            }
+            else if (inABinding) {
+                return;
+            }
+            else {
+                out.push(segment);
+            }
+        });
+        const result = formatSegments(out);
+        this.match(result);
+        return result;
+    }
+    /**
+     * Renders the path template.
+     *
+     * @return {string} contains const names matched to binding values
+     */
+    inspect() {
+        return formatSegments(this.segments);
+    }
+}
+exports.PathTemplate = PathTemplate;
+/**
+ * Creates the string representattion for the segments.
+ * @param {Object[]} segments - The array of segments.
+ * @return {string} - A string representing segments in the path template
+ *   format.
+ */
+function formatSegments(segments) {
+    let out = '';
+    let slash = true;
+    segments.forEach(segment => {
+        if (segment.kind === extras.TERMINAL) {
+            if (slash) {
+                out += '/';
+            }
+            out += segment.literal;
+            return;
+        }
+        slash = true;
+        if (segment.kind === extras.BINDING) {
+            out += '/{' + segment.literal + '=';
+            slash = false;
+        }
+        else {
+            out += segment.literal + '}';
+        }
+    });
+    return out.substring(1);
+}
+//# sourceMappingURL=pathTemplate.js.map

node_modules/google-gax/build/src/pathTemplate.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/pathTemplateParser.js

@@ -0,0 +1,657 @@
+module.exports = (() => {
+  /*
+   * Generated by PEG.js 0.9.0.
+   *
+   * http://pegjs.org/
+   */
+
+  function peg$subclass(child, parent) {
+    function ctor() {
+      this.constructor = child;
+    }
+    ctor.prototype = parent.prototype;
+    child.prototype = new ctor();
+  }
+
+  function peg$SyntaxError(message, expected, found, location) {
+    this.message = message;
+    this.expected = expected;
+    this.found = found;
+    this.location = location;
+    this.name = 'SyntaxError';
+
+    if (typeof Error.captureStackTrace === 'function') {
+      Error.captureStackTrace(this, peg$SyntaxError);
+    }
+  }
+
+  peg$subclass(peg$SyntaxError, Error);
+
+  function peg$parse(input) {
+    const options = arguments.length > 1 ? arguments[1] : {};
+    const parser = this;
+    const peg$FAILED = {};
+    const peg$startRuleFunctions = {template: peg$parsetemplate};
+    let peg$startRuleFunction = peg$parsetemplate;
+    const peg$c0 = '/';
+    const peg$c1 = {type: 'literal', value: '/', description: '"/"'};
+    const peg$c2 = segments => {
+      return segments;
+    };
+    const peg$c3 = (s, segments) => {
+      return s.concat(segments);
+    };
+    const peg$c4 = s => {
+      return s;
+    };
+    const peg$c5 = '{';
+    const peg$c6 = {type: 'literal', value: '{', description: '"{"'};
+    const peg$c7 = '=';
+    const peg$c8 = {type: 'literal', value: '=', description: '"="'};
+    const peg$c9 = '}';
+    const peg$c10 = {type: 'literal', value: '}', description: '"}"'};
+    const peg$c11 = (l, segments) => {
+      return [
+        {kind: extras.BINDING, literal: l},
+        segments,
+        {kind: extras.END_BINDING, literal: ''},
+      ].reduce((a, b) => a.concat(b), []);
+    };
+    const peg$c12 = l => {
+      return [
+        {kind: extras.BINDING, literal: l},
+        {kind: extras.TERMINAL, literal: '*'},
+        {kind: extras.END_BINDING, literal: ''},
+      ];
+    };
+    const peg$c13 = (t, segments) => {
+      return t.concat(segments);
+    };
+    const peg$c14 = t => {
+      if (t[0].literal === '*' || t[0].literal === '**') {
+        return [
+          {
+            kind: extras.BINDING,
+          },
+          t[0],
+          {kind: extras.END_BINDING, literal: ''},
+        ];
+      } else {
+        return t;
+      }
+    };
+    const peg$c15 = '**';
+    const peg$c16 = {type: 'literal', value: '**', description: '"**"'};
+    const peg$c17 = '*';
+    const peg$c18 = {type: 'literal', value: '*', description: '"*"'};
+    const peg$c19 = l => {
+      return [{kind: extras.TERMINAL, literal: l}];
+    };
+    const peg$c20 = /^[^*=}{\/]/;
+    const peg$c21 = {type: 'class', value: '[^*=}{/]', description: '[^*=}{/]'};
+    const peg$c22 = cs => {
+      return cs.join('');
+    };
+    let peg$currPos = 0;
+    let peg$savedPos = 0;
+    const peg$posDetailsCache = [{line: 1, column: 1, seenCR: false}];
+    let peg$maxFailPos = 0;
+    let peg$maxFailExpected = [];
+    const peg$silentFails = 0;
+    let peg$result;
+
+    if ('startRule' in options) {
+      if (!(options.startRule in peg$startRuleFunctions)) {
+        throw new Error(
+          'Can\'t start parsing from rule "' + options.startRule + '".'
+        );
+      }
+
+      peg$startRuleFunction = peg$startRuleFunctions[options.startRule];
+    }
+
+    function text() {
+      return input.substring(peg$savedPos, peg$currPos);
+    }
+
+    function location() {
+      return peg$computeLocation(peg$savedPos, peg$currPos);
+    }
+
+    function expected(description) {
+      throw peg$buildException(
+        null,
+        [{type: 'other', description}],
+        input.substring(peg$savedPos, peg$currPos),
+        peg$computeLocation(peg$savedPos, peg$currPos)
+      );
+    }
+
+    function error(message) {
+      throw peg$buildException(
+        message,
+        null,
+        input.substring(peg$savedPos, peg$currPos),
+        peg$computeLocation(peg$savedPos, peg$currPos)
+      );
+    }
+
+    function peg$computePosDetails(pos) {
+      let details = peg$posDetailsCache[pos],
+        p,
+        ch;
+
+      if (details) {
+        return details;
+      } else {
+        p = pos - 1;
+        while (!peg$posDetailsCache[p]) {
+          p--;
+        }
+
+        details = peg$posDetailsCache[p];
+        details = {
+          line: details.line,
+          column: details.column,
+          seenCR: details.seenCR,
+        };
+
+        while (p < pos) {
+          ch = input.charAt(p);
+          if (ch === '\n') {
+            if (!details.seenCR) {
+              details.line++;
+            }
+            details.column = 1;
+            details.seenCR = false;
+          } else if (ch === '\r' || ch === '\u2028' || ch === '\u2029') {
+            details.line++;
+            details.column = 1;
+            details.seenCR = true;
+          } else {
+            details.column++;
+            details.seenCR = false;
+          }
+
+          p++;
+        }
+
+        peg$posDetailsCache[pos] = details;
+        return details;
+      }
+    }
+
+    function peg$computeLocation(startPos, endPos) {
+      const startPosDetails = peg$computePosDetails(startPos),
+        endPosDetails = peg$computePosDetails(endPos);
+
+      return {
+        start: {
+          offset: startPos,
+          line: startPosDetails.line,
+          column: startPosDetails.column,
+        },
+        end: {
+          offset: endPos,
+          line: endPosDetails.line,
+          column: endPosDetails.column,
+        },
+      };
+    }
+
+    function peg$fail(expected) {
+      if (peg$currPos < peg$maxFailPos) {
+        return;
+      }
+
+      if (peg$currPos > peg$maxFailPos) {
+        peg$maxFailPos = peg$currPos;
+        peg$maxFailExpected = [];
+      }
+
+      peg$maxFailExpected.push(expected);
+    }
+
+    function peg$buildException(message, expected, found, location) {
+      function cleanupExpected(expected) {
+        let i = 1;
+
+        expected.sort((a, b) => {
+          if (a.description < b.description) {
+            return -1;
+          } else if (a.description > b.description) {
+            return 1;
+          } else {
+            return 0;
+          }
+        });
+
+        while (i < expected.length) {
+          if (expected[i - 1] === expected[i]) {
+            expected.splice(i, 1);
+          } else {
+            i++;
+          }
+        }
+      }
+
+      function buildMessage(expected, found) {
+        function stringEscape(s) {
+          function hex(ch) {
+            return ch
+              .charCodeAt(0)
+              .toString(16)
+              .toUpperCase();
+          }
+
+          return s
+            .replace(/\\/g, '\\\\')
+            .replace(/"/g, '\\"')
+            .replace(/\x08/g, '\\b')
+            .replace(/\t/g, '\\t')
+            .replace(/\n/g, '\\n')
+            .replace(/\f/g, '\\f')
+            .replace(/\r/g, '\\r')
+            .replace(/[\x00-\x07\x0B\x0E\x0F]/g, ch => {
+              return '\\x0' + hex(ch);
+            })
+            .replace(/[\x10-\x1F\x80-\xFF]/g, ch => {
+              return '\\x' + hex(ch);
+            })
+            .replace(/[\u0100-\u0FFF]/g, ch => {
+              return '\\u0' + hex(ch);
+            })
+            .replace(/[\u1000-\uFFFF]/g, ch => {
+              return '\\u' + hex(ch);
+            });
+        }
+
+        const expectedDescs = new Array(expected.length);
+        let expectedDesc, foundDesc, i;
+
+        for (i = 0; i < expected.length; i++) {
+          expectedDescs[i] = expected[i].description;
+        }
+
+        expectedDesc =
+          expected.length > 1
+            ? expectedDescs.slice(0, -1).join(', ') +
+              ' or ' +
+              expectedDescs[expected.length - 1]
+            : expectedDescs[0];
+
+        foundDesc = found ? '"' + stringEscape(found) + '"' : 'end of input';
+
+        return 'Expected ' + expectedDesc + ' but ' + foundDesc + ' found.';
+      }
+
+      if (expected !== null) {
+        cleanupExpected(expected);
+      }
+
+      return new peg$SyntaxError(
+        message !== null ? message : buildMessage(expected, found),
+        expected,
+        found,
+        location
+      );
+    }
+
+    function peg$parsetemplate() {
+      let s0, s1, s2;
+
+      s0 = peg$currPos;
+      if (input.charCodeAt(peg$currPos) === 47) {
+        s1 = peg$c0;
+        peg$currPos++;
+      } else {
+        s1 = peg$FAILED;
+        if (peg$silentFails === 0) {
+          peg$fail(peg$c1);
+        }
+      }
+      if (s1 !== peg$FAILED) {
+        s2 = peg$parsebound_segments();
+        if (s2 !== peg$FAILED) {
+          peg$savedPos = s0;
+          s1 = peg$c2(s2);
+          s0 = s1;
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+      if (s0 === peg$FAILED) {
+        s0 = peg$currPos;
+        s1 = peg$parsebound_segments();
+        if (s1 !== peg$FAILED) {
+          peg$savedPos = s0;
+          s1 = peg$c2(s1);
+        }
+        s0 = s1;
+      }
+
+      return s0;
+    }
+
+    function peg$parsebound_segments() {
+      let s0, s1, s2, s3;
+
+      s0 = peg$currPos;
+      s1 = peg$parsebound_segment();
+      if (s1 !== peg$FAILED) {
+        if (input.charCodeAt(peg$currPos) === 47) {
+          s2 = peg$c0;
+          peg$currPos++;
+        } else {
+          s2 = peg$FAILED;
+          if (peg$silentFails === 0) {
+            peg$fail(peg$c1);
+          }
+        }
+        if (s2 !== peg$FAILED) {
+          s3 = peg$parsebound_segments();
+          if (s3 !== peg$FAILED) {
+            peg$savedPos = s0;
+            s1 = peg$c3(s1, s3);
+            s0 = s1;
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+      if (s0 === peg$FAILED) {
+        s0 = peg$parsebound_segment();
+      }
+
+      return s0;
+    }
+
+    function peg$parsebound_segment() {
+      let s0, s1;
+
+      s0 = peg$currPos;
+      s1 = peg$parsebound_terminal();
+      if (s1 === peg$FAILED) {
+        s1 = peg$parsevariable();
+      }
+      if (s1 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s1 = peg$c4(s1);
+      }
+      s0 = s1;
+
+      return s0;
+    }
+
+    function peg$parsevariable() {
+      let s0, s1, s2, s3, s4, s5;
+
+      s0 = peg$currPos;
+      if (input.charCodeAt(peg$currPos) === 123) {
+        s1 = peg$c5;
+        peg$currPos++;
+      } else {
+        s1 = peg$FAILED;
+        if (peg$silentFails === 0) {
+          peg$fail(peg$c6);
+        }
+      }
+      if (s1 !== peg$FAILED) {
+        s2 = peg$parseliteral();
+        if (s2 !== peg$FAILED) {
+          if (input.charCodeAt(peg$currPos) === 61) {
+            s3 = peg$c7;
+            peg$currPos++;
+          } else {
+            s3 = peg$FAILED;
+            if (peg$silentFails === 0) {
+              peg$fail(peg$c8);
+            }
+          }
+          if (s3 !== peg$FAILED) {
+            s4 = peg$parseunbound_segments();
+            if (s4 !== peg$FAILED) {
+              if (input.charCodeAt(peg$currPos) === 125) {
+                s5 = peg$c9;
+                peg$currPos++;
+              } else {
+                s5 = peg$FAILED;
+                if (peg$silentFails === 0) {
+                  peg$fail(peg$c10);
+                }
+              }
+              if (s5 !== peg$FAILED) {
+                peg$savedPos = s0;
+                s1 = peg$c11(s2, s4);
+                s0 = s1;
+              } else {
+                peg$currPos = s0;
+                s0 = peg$FAILED;
+              }
+            } else {
+              peg$currPos = s0;
+              s0 = peg$FAILED;
+            }
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+      if (s0 === peg$FAILED) {
+        s0 = peg$currPos;
+        if (input.charCodeAt(peg$currPos) === 123) {
+          s1 = peg$c5;
+          peg$currPos++;
+        } else {
+          s1 = peg$FAILED;
+          if (peg$silentFails === 0) {
+            peg$fail(peg$c6);
+          }
+        }
+        if (s1 !== peg$FAILED) {
+          s2 = peg$parseliteral();
+          if (s2 !== peg$FAILED) {
+            if (input.charCodeAt(peg$currPos) === 125) {
+              s3 = peg$c9;
+              peg$currPos++;
+            } else {
+              s3 = peg$FAILED;
+              if (peg$silentFails === 0) {
+                peg$fail(peg$c10);
+              }
+            }
+            if (s3 !== peg$FAILED) {
+              peg$savedPos = s0;
+              s1 = peg$c12(s2);
+              s0 = s1;
+            } else {
+              peg$currPos = s0;
+              s0 = peg$FAILED;
+            }
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      }
+
+      return s0;
+    }
+
+    function peg$parseunbound_segments() {
+      let s0, s1, s2, s3;
+
+      s0 = peg$currPos;
+      s1 = peg$parseunbound_terminal();
+      if (s1 !== peg$FAILED) {
+        if (input.charCodeAt(peg$currPos) === 47) {
+          s2 = peg$c0;
+          peg$currPos++;
+        } else {
+          s2 = peg$FAILED;
+          if (peg$silentFails === 0) {
+            peg$fail(peg$c1);
+          }
+        }
+        if (s2 !== peg$FAILED) {
+          s3 = peg$parseunbound_segments();
+          if (s3 !== peg$FAILED) {
+            peg$savedPos = s0;
+            s1 = peg$c13(s1, s3);
+            s0 = s1;
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$FAILED;
+        }
+      } else {
+        peg$currPos = s0;
+        s0 = peg$FAILED;
+      }
+      if (s0 === peg$FAILED) {
+        s0 = peg$parseunbound_terminal();
+      }
+
+      return s0;
+    }
+
+    function peg$parsebound_terminal() {
+      let s0, s1;
+
+      s0 = peg$currPos;
+      s1 = peg$parseunbound_terminal();
+      if (s1 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s1 = peg$c14(s1);
+      }
+      s0 = s1;
+
+      return s0;
+    }
+
+    function peg$parseunbound_terminal() {
+      let s0, s1;
+
+      s0 = peg$currPos;
+      if (input.substr(peg$currPos, 2) === peg$c15) {
+        s1 = peg$c15;
+        peg$currPos += 2;
+      } else {
+        s1 = peg$FAILED;
+        if (peg$silentFails === 0) {
+          peg$fail(peg$c16);
+        }
+      }
+      if (s1 === peg$FAILED) {
+        if (input.charCodeAt(peg$currPos) === 42) {
+          s1 = peg$c17;
+          peg$currPos++;
+        } else {
+          s1 = peg$FAILED;
+          if (peg$silentFails === 0) {
+            peg$fail(peg$c18);
+          }
+        }
+        if (s1 === peg$FAILED) {
+          s1 = peg$parseliteral();
+        }
+      }
+      if (s1 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s1 = peg$c19(s1);
+      }
+      s0 = s1;
+
+      return s0;
+    }
+
+    function peg$parseliteral() {
+      let s0, s1, s2;
+
+      s0 = peg$currPos;
+      s1 = [];
+      if (peg$c20.test(input.charAt(peg$currPos))) {
+        s2 = input.charAt(peg$currPos);
+        peg$currPos++;
+      } else {
+        s2 = peg$FAILED;
+        if (peg$silentFails === 0) {
+          peg$fail(peg$c21);
+        }
+      }
+      if (s2 !== peg$FAILED) {
+        while (s2 !== peg$FAILED) {
+          s1.push(s2);
+          if (peg$c20.test(input.charAt(peg$currPos))) {
+            s2 = input.charAt(peg$currPos);
+            peg$currPos++;
+          } else {
+            s2 = peg$FAILED;
+            if (peg$silentFails === 0) {
+              peg$fail(peg$c21);
+            }
+          }
+        }
+      } else {
+        s1 = peg$FAILED;
+      }
+      if (s1 !== peg$FAILED) {
+        peg$savedPos = s0;
+        s1 = peg$c22(s1);
+      }
+      s0 = s1;
+
+      return s0;
+    }
+
+    const extras = require('./parserExtras');
+
+    peg$result = peg$startRuleFunction();
+
+    if (peg$result !== peg$FAILED && peg$currPos === input.length) {
+      return peg$result;
+    } else {
+      if (peg$result !== peg$FAILED && peg$currPos < input.length) {
+        peg$fail({type: 'end', description: 'end of input'});
+      }
+
+      throw peg$buildException(
+        null,
+        peg$maxFailExpected,
+        peg$maxFailPos < input.length ? input.charAt(peg$maxFailPos) : null,
+        peg$maxFailPos < input.length
+          ? peg$computeLocation(peg$maxFailPos, peg$maxFailPos + 1)
+          : peg$computeLocation(peg$maxFailPos, peg$maxFailPos)
+      );
+    }
+  }
+
+  return {
+    SyntaxError: peg$SyntaxError,
+    parse: peg$parse,
+  };
+})();

node_modules/google-gax/build/src/routingHeader.d.ts

@@ -0,0 +1,17 @@
+/**
+ * Helpers for constructing routing headers.
+ *
+ * These headers are used by Google infrastructure to determine how to route
+ * requests, especially for services that are regional.
+ *
+ * Generally, these headers are specified as gRPC metadata.
+ */
+/**
+ * Constructs the routing header from the given params
+ *
+ * @param {Object} params - the request header parameters.
+ * @return {string} the routing header value.
+ */
+export declare function fromParams(params: {
+    [index: string]: string | number | boolean;
+}): string;

node_modules/google-gax/build/src/routingHeader.js

@@ -0,0 +1,52 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const querystring = require("querystring");
+/**
+ * Helpers for constructing routing headers.
+ *
+ * These headers are used by Google infrastructure to determine how to route
+ * requests, especially for services that are regional.
+ *
+ * Generally, these headers are specified as gRPC metadata.
+ */
+/**
+ * Constructs the routing header from the given params
+ *
+ * @param {Object} params - the request header parameters.
+ * @return {string} the routing header value.
+ */
+function fromParams(params) {
+    return querystring.stringify(params);
+}
+exports.fromParams = fromParams;
+//# sourceMappingURL=routingHeader.js.map

node_modules/google-gax/build/src/routingHeader.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"routingHeader.js","sourceRoot":"","sources":["../../src/routingHeader.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAEH,2CAA2C;AAE3C;;;;;;;GAOG;AAEH;;;;;GAKG;AAEH,SAAgB,UAAU,CAAC,MAE1B;IACC,OAAO,WAAW,CAAC,SAAS,CAAC,MAAM,CAAC,CAAC;AACvC,CAAC;AAJD,gCAIC"}

node_modules/google-gax/build/src/status.d.ts

@@ -0,0 +1,19 @@
+export declare enum Status {
+    OK = 0,
+    CANCELLED = 1,
+    UNKNOWN = 2,
+    INVALID_ARGUMENT = 3,
+    DEADLINE_EXCEEDED = 4,
+    NOT_FOUND = 5,
+    ALREADY_EXISTS = 6,
+    PERMISSION_DENIED = 7,
+    RESOURCE_EXHAUSTED = 8,
+    FAILED_PRECONDITION = 9,
+    ABORTED = 10,
+    OUT_OF_RANGE = 11,
+    UNIMPLEMENTED = 12,
+    INTERNAL = 13,
+    UNAVAILABLE = 14,
+    DATA_LOSS = 15,
+    UNAUTHENTICATED = 16
+}

node_modules/google-gax/build/src/status.js

@@ -0,0 +1,57 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+// The following is a copy of the Status enum defined in @grpc/grpc-js,
+// src/constants.ts. We need to use some of these statuses here and there,
+// but we don't want to include the whole @grpc/grpc-js into the browser
+// bundle just to have this small enum.
+var Status;
+(function (Status) {
+    Status[Status["OK"] = 0] = "OK";
+    Status[Status["CANCELLED"] = 1] = "CANCELLED";
+    Status[Status["UNKNOWN"] = 2] = "UNKNOWN";
+    Status[Status["INVALID_ARGUMENT"] = 3] = "INVALID_ARGUMENT";
+    Status[Status["DEADLINE_EXCEEDED"] = 4] = "DEADLINE_EXCEEDED";
+    Status[Status["NOT_FOUND"] = 5] = "NOT_FOUND";
+    Status[Status["ALREADY_EXISTS"] = 6] = "ALREADY_EXISTS";
+    Status[Status["PERMISSION_DENIED"] = 7] = "PERMISSION_DENIED";
+    Status[Status["RESOURCE_EXHAUSTED"] = 8] = "RESOURCE_EXHAUSTED";
+    Status[Status["FAILED_PRECONDITION"] = 9] = "FAILED_PRECONDITION";
+    Status[Status["ABORTED"] = 10] = "ABORTED";
+    Status[Status["OUT_OF_RANGE"] = 11] = "OUT_OF_RANGE";
+    Status[Status["UNIMPLEMENTED"] = 12] = "UNIMPLEMENTED";
+    Status[Status["INTERNAL"] = 13] = "INTERNAL";
+    Status[Status["UNAVAILABLE"] = 14] = "UNAVAILABLE";
+    Status[Status["DATA_LOSS"] = 15] = "DATA_LOSS";
+    Status[Status["UNAUTHENTICATED"] = 16] = "UNAUTHENTICATED";
+})(Status = exports.Status || (exports.Status = {}));
+//# sourceMappingURL=status.js.map

node_modules/google-gax/build/src/status.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"status.js","sourceRoot":"","sources":["../../src/status.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAEH,uEAAuE;AACvE,0EAA0E;AAC1E,wEAAwE;AACxE,uCAAuC;AAEvC,IAAY,MAkBX;AAlBD,WAAY,MAAM;IAChB,+BAAM,CAAA;IACN,6CAAS,CAAA;IACT,yCAAO,CAAA;IACP,2DAAgB,CAAA;IAChB,6DAAiB,CAAA;IACjB,6CAAS,CAAA;IACT,uDAAc,CAAA;IACd,6DAAiB,CAAA;IACjB,+DAAkB,CAAA;IAClB,iEAAmB,CAAA;IACnB,0CAAO,CAAA;IACP,oDAAY,CAAA;IACZ,sDAAa,CAAA;IACb,4CAAQ,CAAA;IACR,kDAAW,CAAA;IACX,8CAAS,CAAA;IACT,0DAAe,CAAA;AACjB,CAAC,EAlBW,MAAM,GAAN,cAAM,KAAN,cAAM,QAkBjB"}

node_modules/google-gax/build/src/streamingCalls/streamDescriptor.d.ts

@@ -0,0 +1,13 @@
+import { APICaller } from '../apiCaller';
+import { Descriptor } from '../descriptor';
+import { CallSettings } from '../gax';
+import { StreamType } from './streaming';
+/**
+ * A descriptor for streaming calls.
+ */
+export declare class StreamDescriptor implements Descriptor {
+    type: StreamType;
+    streaming: boolean;
+    constructor(streamType: StreamType);
+    getApiCaller(settings: CallSettings): APICaller;
+}

node_modules/google-gax/build/src/streamingCalls/streamDescriptor.js

@@ -0,0 +1,52 @@
+"use strict";
+/*
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const streamingApiCaller_1 = require("./streamingApiCaller");
+/**
+ * A descriptor for streaming calls.
+ */
+class StreamDescriptor {
+    constructor(streamType) {
+        this.type = streamType;
+        this.streaming = true;
+    }
+    getApiCaller(settings) {
+        // Right now retrying does not work with gRPC-streaming, because retryable
+        // assumes an API call returns an event emitter while gRPC-streaming methods
+        // return Stream.
+        // TODO: support retrying.
+        settings.retry = null;
+        return new streamingApiCaller_1.StreamingApiCaller(this);
+    }
+}
+exports.StreamDescriptor = StreamDescriptor;
+//# sourceMappingURL=streamDescriptor.js.map

node_modules/google-gax/build/src/streamingCalls/streamDescriptor.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"streamDescriptor.js","sourceRoot":"","sources":["../../../src/streamingCalls/streamDescriptor.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;;AAOH,6DAAwD;AAExD;;GAEG;AACH,MAAa,gBAAgB;IAI3B,YAAY,UAAsB;QAChC,IAAI,CAAC,IAAI,GAAG,UAAU,CAAC;QACvB,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC;IACxB,CAAC;IAED,YAAY,CAAC,QAAsB;QACjC,0EAA0E;QAC1E,4EAA4E;QAC5E,iBAAiB;QACjB,0BAA0B;QAC1B,QAAQ,CAAC,KAAK,GAAG,IAAI,CAAC;QACtB,OAAO,IAAI,uCAAkB,CAAC,IAAI,CAAC,CAAC;IACtC,CAAC;CACF;AAjBD,4CAiBC"}

node_modules/google-gax/build/src/streamingCalls/streaming.d.ts

@@ -0,0 +1,88 @@
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/// <reference types="node" />
+import { Duplex, DuplexOptions, Readable, Stream, Writable } from 'stream';
+import { APICallback, CancellableStream, GRPCCallResult, SimpleCallbackFunction } from '../apitypes';
+declare const duplexify: DuplexifyConstructor;
+export interface DuplexifyOptions extends DuplexOptions {
+    autoDestroy?: boolean;
+    end?: boolean;
+}
+export interface Duplexify extends Duplex {
+    readonly destroyed: boolean;
+    setWritable(writable: Writable | false | null): void;
+    setReadable(readable: Readable | false | null): void;
+}
+export interface DuplexifyConstructor {
+    obj(writable?: Writable | false | null, readable?: Readable | false | null, options?: DuplexifyOptions): Duplexify;
+    new (writable?: Writable | false | null, readable?: Readable | false | null, options?: DuplexifyOptions): Duplexify;
+    (writable?: Writable | false | null, readable?: Readable | false | null, options?: DuplexifyOptions): Duplexify;
+}
+/**
+ * The type of gRPC streaming.
+ * @enum {number}
+ */
+export declare enum StreamType {
+    /** Client sends a single request, server streams responses. */
+    SERVER_STREAMING = 1,
+    /** Client streams requests, server returns a single response. */
+    CLIENT_STREAMING = 2,
+    /** Both client and server stream objects. */
+    BIDI_STREAMING = 3
+}
+export declare class StreamProxy extends duplexify implements GRPCCallResult {
+    type: StreamType;
+    private _callback;
+    private _isCancelCalled;
+    stream?: CancellableStream;
+    /**
+     * StreamProxy is a proxy to gRPC-streaming method.
+     *
+     * @private
+     * @constructor
+     * @param {StreamType} type - the type of gRPC stream.
+     * @param {ApiCallback} callback - the callback for further API call.
+     */
+    constructor(type: StreamType, callback: APICallback);
+    cancel(): void;
+    /**
+     * Forward events from an API request stream to the user's stream.
+     * @param {Stream} stream - The API request stream.
+     */
+    forwardEvents(stream: Stream): void;
+    /**
+     * Specifies the target stream.
+     * @param {ApiCall} apiCall - the API function to be called.
+     * @param {Object} argument - the argument to be passed to the apiCall.
+     */
+    setStream(apiCall: SimpleCallbackFunction, argument: {}): void;
+}
+export {};

node_modules/google-gax/build/src/streamingCalls/streaming.js

@@ -0,0 +1,142 @@
+"use strict";
+/**
+ * Copyright 2019 Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const duplexify = require('duplexify');
+const retryRequest = require('retry-request');
+/**
+ * The type of gRPC streaming.
+ * @enum {number}
+ */
+var StreamType;
+(function (StreamType) {
+    /** Client sends a single request, server streams responses. */
+    StreamType[StreamType["SERVER_STREAMING"] = 1] = "SERVER_STREAMING";
+    /** Client streams requests, server returns a single response. */
+    StreamType[StreamType["CLIENT_STREAMING"] = 2] = "CLIENT_STREAMING";
+    /** Both client and server stream objects. */
+    StreamType[StreamType["BIDI_STREAMING"] = 3] = "BIDI_STREAMING";
+})(StreamType = exports.StreamType || (exports.StreamType = {}));
+class StreamProxy extends duplexify {
+    /**
+     * StreamProxy is a proxy to gRPC-streaming method.
+     *
+     * @private
+     * @constructor
+     * @param {StreamType} type - the type of gRPC stream.
+     * @param {ApiCallback} callback - the callback for further API call.
+     */
+    constructor(type, callback) {
+        super(undefined, undefined, {
+            objectMode: true,
+            readable: type !== StreamType.CLIENT_STREAMING,
+            writable: type !== StreamType.SERVER_STREAMING,
+        });
+        this.type = type;
+        this._callback = callback;
+        this._isCancelCalled = false;
+    }
+    cancel() {
+        if (this.stream) {
+            this.stream.cancel();
+        }
+        else {
+            this._isCancelCalled = true;
+        }
+    }
+    /**
+     * Forward events from an API request stream to the user's stream.
+     * @param {Stream} stream - The API request stream.
+     */
+    forwardEvents(stream) {
+        const eventsToForward = ['metadata', 'response', 'status'];
+        eventsToForward.forEach(event => {
+            stream.on(event, this.emit.bind(this, event));
+        });
+        // We also want to supply the status data as 'response' event to support
+        // the behavior of google-cloud-node expects.
+        // see:
+        // https://github.com/GoogleCloudPlatform/google-cloud-node/pull/1775#issuecomment-259141029
+        // https://github.com/GoogleCloudPlatform/google-cloud-node/blob/116436fa789d8b0f7fc5100b19b424e3ec63e6bf/packages/common/src/grpc-service.js#L355
+        stream.on('metadata', metadata => {
+            // Create a response object with succeeds.
+            // TODO: unify this logic with the decoration of gRPC response when it's
+            // added. see: https://github.com/googleapis/gax-nodejs/issues/65
+            stream.emit('response', {
+                code: 200,
+                details: '',
+                message: 'OK',
+                metadata,
+            });
+        });
+    }
+    /**
+     * Specifies the target stream.
+     * @param {ApiCall} apiCall - the API function to be called.
+     * @param {Object} argument - the argument to be passed to the apiCall.
+     */
+    setStream(apiCall, argument) {
+        if (this.type === StreamType.SERVER_STREAMING) {
+            const retryStream = retryRequest(null, {
+                objectMode: true,
+                request: () => {
+                    if (this._isCancelCalled) {
+                        if (this.stream) {
+                            this.stream.cancel();
+                        }
+                        return;
+                    }
+                    const stream = apiCall(argument, this._callback);
+                    this.stream = stream;
+                    this.forwardEvents(stream);
+                    return stream;
+                },
+            });
+            this.setReadable(retryStream);
+            return;
+        }
+        const stream = apiCall(argument, this._callback);
+        this.stream = stream;
+        this.forwardEvents(stream);
+        if (this.type === StreamType.CLIENT_STREAMING) {
+            this.setWritable(stream);
+        }
+        if (this.type === StreamType.BIDI_STREAMING) {
+            this.setReadable(stream);
+            this.setWritable(stream);
+        }
+        if (this._isCancelCalled && this.stream) {
+            this.stream.cancel();
+        }
+    }
+}
+exports.StreamProxy = StreamProxy;
+//# sourceMappingURL=streaming.js.map

node_modules/google-gax/build/src/streamingCalls/streaming.js.map

@@ -0,0 +1 @@
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node_modules/google-gax/build/src/streamingCalls/streamingApiCaller.d.ts

@@ -0,0 +1,19 @@
+import { APICaller, ApiCallerSettings } from '../apiCaller';
+import { APICallback, CancellableStream, GRPCCall, SimpleCallbackFunction } from '../apitypes';
+import { StreamDescriptor } from './streamDescriptor';
+import { StreamProxy } from './streaming';
+export declare class StreamingApiCaller implements APICaller {
+    descriptor: StreamDescriptor;
+    /**
+     * An API caller for methods of gRPC streaming.
+     * @private
+     * @constructor
+     * @param {StreamDescriptor} descriptor - the descriptor of the method structure.
+     */
+    constructor(descriptor: StreamDescriptor);
+    init(settings: ApiCallerSettings, callback: APICallback): StreamProxy;
+    wrap(func: GRPCCall): GRPCCall;
+    call(apiCall: SimpleCallbackFunction, argument: {}, settings: {}, stream: StreamProxy): void;
+    fail(stream: CancellableStream, err: Error): void;
+    result(stream: CancellableStream): CancellableStream;
+}

node_modules/google-gax/build/src/streamingCalls/streamingApiCaller.js

@@ -0,0 +1,78 @@
+"use strict";
+/*
+ * Copyright 2019, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const warnings_1 = require("../warnings");
+const streaming_1 = require("./streaming");
+class StreamingApiCaller {
+    /**
+     * An API caller for methods of gRPC streaming.
+     * @private
+     * @constructor
+     * @param {StreamDescriptor} descriptor - the descriptor of the method structure.
+     */
+    constructor(descriptor) {
+        this.descriptor = descriptor;
+    }
+    init(settings, callback) {
+        return new streaming_1.StreamProxy(this.descriptor.type, callback);
+    }
+    wrap(func) {
+        switch (this.descriptor.type) {
+            case streaming_1.StreamType.SERVER_STREAMING:
+                return (argument, metadata, options) => {
+                    return func(argument, metadata, options);
+                };
+            case streaming_1.StreamType.CLIENT_STREAMING:
+                return (argument, metadata, options, callback) => {
+                    return func(metadata, options, callback);
+                };
+            case streaming_1.StreamType.BIDI_STREAMING:
+                return (argument, metadata, options) => {
+                    return func(metadata, options);
+                };
+            default:
+                warnings_1.warn('streaming_wrap_unknown_stream_type', `Unknown stream type: ${this.descriptor.type}`);
+        }
+        return func;
+    }
+    call(apiCall, argument, settings, stream) {
+        stream.setStream(apiCall, argument);
+    }
+    fail(stream, err) {
+        stream.emit('error', err);
+    }
+    result(stream) {
+        return stream;
+    }
+}
+exports.StreamingApiCaller = StreamingApiCaller;
+//# sourceMappingURL=streamingApiCaller.js.map