/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * 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.
 */
export declare type ValidationResponse = string | null;
export declare type ConditionFunction = (context: Context) => () => Promise<ValidationResponse>;
export declare type Compression = 'brotli' | 'gzip' | 'none';
export declare const OrderedCompressionValues: string[];
declare type path = string;
export declare type OriginalPath = Map<path, path>;
declare type size = number | null | undefined;
export declare type maxSize = number | undefined;
export declare type brotliSize = [size, maxSize];
export declare type gzipSize = [size, maxSize];
export declare type noneSize = [size, maxSize];
export declare type SizeMapValue = [brotliSize, gzipSize, noneSize];
export declare const SizeMapValueIndex: {
    brotli: number;
    gzip: number;
    none: number;
};
export declare type SizeMap = Map<path, SizeMapValue>;
export declare type FileContentsMap = Map<path, string>;
export declare type FileModifier = ((contents: string) => string) | null;
export interface Context {
    projectPath: string;
    packagePath: string;
    packageContent: string | null;
    silent: boolean;
    originalPaths: OriginalPath;
    compressed: SizeMap;
    comparison: SizeMap;
    fileModifier: FileModifier;
    fileContents: FileContentsMap;
}
export {};