/// <reference types="node" />
/// <reference types="node" />
import * as zlib from 'zlib';
import type { Callback } from '../../utils';
import type { OperationDescription } from '../message_stream';
/** @public */
export declare const Compressor: Readonly<{
    readonly none: 0;
    readonly snappy: 1;
    readonly zlib: 2;
    readonly zstd: 3;
}>;
/** @public */
export declare type Compressor = typeof Compressor[CompressorName];
/** @public */
export declare type CompressorName = keyof typeof Compressor;
export declare const uncompressibleCommands: Set<string>;
export declare function compress(self: {
    options: OperationDescription & zlib.ZlibOptions;
}, dataToBeCompressed: Buffer, callback: Callback<Buffer>): void;
export declare function decompress(compressorID: Compressor, compressedData: Buffer, callback: Callback<Buffer>): void;
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