/**
 * Compress/decompress JSON-serializable objects with native compression streams
 * and encode/decode to/from url-safe base 64. Use this module by importing from
 * `@sirpepe/shed/compress`.
 */
/**
 * Compress a JSON-serializable object to url-safe base64 using the JSON
 * replacer `replacer` and the data format `format`.
 */
export declare function compressToBase64(inputData: any, replacer?: (this: any, key: string, value: any) => any, format?: ConstructorParameters<typeof CompressionStream>[0]): Promise<string>;
/**
 * Decompress the output of `compressToBase64()`  using the JSON reviver
 * `reviver` and the data format `format`.
 */
export declare function decompressFromBase64<T = any>(inputBase64: string, reviver?: (this: any, key: string, value: any) => any, format?: ConstructorParameters<typeof DecompressionStream>[0]): Promise<T>;