/// <reference types="node" />
/// <reference types="node" />
import { ZlibOptions } from 'zlib';
/**
 * deflateBuffer uses `deflate`.
 * It's 9 bytes shorter than `gzip`.
 */
export declare function deflateBuffer(buf: Buffer, options?: ZlibOptions): Promise<Buffer>;
export declare function inflateBuffer(buf: Buffer, options?: ZlibOptions): Promise<Buffer>;
/**
 * deflateString uses `deflate`.
 * It's 9 bytes shorter than `gzip`.
 */
export declare function deflateString(s: string, options?: ZlibOptions): Promise<Buffer>;
export declare function inflateToString(buf: Buffer, options?: ZlibOptions): Promise<string>;
/**
 * gzipBuffer uses `gzip`
 * It's 9 bytes longer than `deflate`.
 */
export declare function gzipBuffer(buf: Buffer, options?: ZlibOptions): Promise<Buffer>;
export declare function gunzipBuffer(buf: Buffer, options?: ZlibOptions): Promise<Buffer>;
/**
 * gzipString uses `gzip`.
 * It's 9 bytes longer than `deflate`.
 */
export declare function gzipString(s: string, options?: ZlibOptions): Promise<Buffer>;
export declare function gunzipToString(buf: Buffer, options?: ZlibOptions): Promise<string>;