/**
 * Decompress zstd-compressed data.
 */
import type { DecodeTrace } from './decode/debugTrace.js';
import type { DecoderReuseBag } from './decode/reconstruct.js';
/** Opaque context for reusing decoder state across repeated decompress() calls. Pass to options.reuseContext for speed. */
export type DecoderContext = DecoderReuseBag;
export type DecompressOptions = {
    maxSize?: number;
    dictionary?: Uint8Array | {
        bytes: Uint8Array;
        id?: number;
    };
    /** When true (default), validate frame content checksum when present. Set to false to skip validation for speed. */
    validateChecksum?: boolean;
    /** Optional reusable context; use one context per logical stream for best speed when decoding repeatedly. */
    reuseContext?: DecoderContext;
    /** Debug-only decode callbacks for instrumentation. */
    debugTrace?: DecodeTrace;
};
export declare function decompress(input: Uint8Array, options?: DecompressOptions): Uint8Array;