/**
 * @license
 * Copyright 2020 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import * as ts from 'typescript';
export interface SDKMinifierOptions {
    /** List of identifiers that are not to be minified. */
    publicIdentifiers: Set<string>;
    /**
     * A prefix to append to all identifiers that are not referencing the Public
     * API. Defauls to '_'.
     */
    prefix?: string;
}
/**
 * A TypeScript transformer that minifies existing source files. All identifiers
 * are minified unless listed in `config.publicIdentifiers`.
 */
export declare function renameInternals(program: ts.Program, config: SDKMinifierOptions): ts.TransformerFactory<ts.SourceFile>;