/** Compression type representation */
export declare class Compression {
    /** Brotli compression */
    static readonly BROTLI: Compression;
    /** Gzip compression */
    static readonly GZIP: Compression;
    /** No compression */
    static readonly NONE: Compression;
    /** Encoding key used in the manifest */
    readonly encodingKey: 'gz' | 'br' | 'raw';
    /** File extension */
    readonly extension: string;
    private constructor();
}