import { ExpoConfig } from '@expo/config';
import { AnyConfiguration, Environment } from '../types';
/**
 * @internal
 */
export declare const DEFAULT_GZIP_OPTIONS: {
    test: RegExp;
    filename: string;
    algorithm: string;
    threshold: number;
    minRatio: number;
};
/**
 * Add production compression options to the provided Webpack config.
 *
 * @param webpackConfig Existing Webpack config to modify.
 * @param env Environment used for getting the Expo project config.
 * @category addons
 */
export default function withCompression(webpackConfig: AnyConfiguration, env: Pick<Environment, 'projectRoot' | 'mode' | 'config' | 'locations'>): AnyConfiguration;
/**
 * Add Gzip compression to the provided Webpack config.
 *
 * @param webpackConfig Existing Webpack config to modify.
 * @param expoConfig Expo config with compression options.
 * @internal
 */
export declare function addCompressionPlugins(webpackConfig: AnyConfiguration, expoConfig: ExpoConfig): AnyConfiguration;