interface BrotliDecodeOptions {
    customDictionary?: Uint8Array | Int8Array | null;
    outputSize?: number;
}
export declare function enableEagerOutput(s: State): number;
export declare function enableLargeWindow(s: State): number;
declare class State {
    ringBuffer: Uint8Array;
    contextModes: Int8Array<ArrayBuffer>;
    contextMap: Int8Array<ArrayBuffer>;
    distContextMap: Int8Array<ArrayBuffer>;
    distExtraBits: Int8Array<ArrayBuffer>;
    output: Uint8Array;
    byteBuffer: Int8Array<ArrayBuffer>;
    byteBuffer16: Uint16Array<ArrayBuffer>;
    shortBuffer: Int16Array<ArrayBuffer>;
    intBuffer: Int32Array<ArrayBuffer>;
    rings: Int32Array<ArrayBuffer>;
    blockTrees: Int32Array<ArrayBuffer>;
    literalTreeGroup: Int32Array<ArrayBuffer>;
    commandTreeGroup: Int32Array<ArrayBuffer>;
    distanceTreeGroup: Int32Array<ArrayBuffer>;
    distOffset: Int32Array<ArrayBuffer>;
    contextTreeBase: Int32Array<ArrayBuffer>;
    accumulator64: number;
    runningState: number;
    nextRunningState: number;
    accumulator32: number;
    bitOffset: number;
    halfOffset: number;
    tailBytes: number;
    endOfStreamReached: number;
    metaBlockLength: number;
    inputEnd: number;
    isUncompressed: number;
    isMetadata: number;
    literalBlockLength: number;
    numLiteralBlockTypes: number;
    commandBlockLength: number;
    numCommandBlockTypes: number;
    distanceBlockLength: number;
    numDistanceBlockTypes: number;
    pos: number;
    maxDistance: number;
    distRbIdx: number;
    trivialLiteralContext: number;
    literalTreeIdx: number;
    commandTreeIdx: number;
    j: number;
    insertLength: number;
    contextMapSlice: number;
    distContextMapSlice: number;
    contextLookupOffset1: number;
    contextLookupOffset2: number;
    distanceCode: number;
    numDirectDistanceCodes: number;
    distancePostfixBits: number;
    distance: number;
    copyLength: number;
    maxBackwardDistance: number;
    maxRingBufferSize: number;
    ringBufferSize: number;
    expectedTotalSize: number;
    outputOffset: number;
    outputLength: number;
    outputUsed: number;
    ringBufferBytesWritten: number;
    ringBufferBytesReady: number;
    isEager: number;
    isLargeWindow: number;
    cdNumChunks: number;
    cdTotalSize: number;
    cdBrIndex: number;
    cdBrOffset: number;
    cdBrLength: number;
    cdBrCopied: number;
    cdChunks: any[];
    cdChunkOffsets: Int32Array<ArrayBuffer>;
    cdBlockBits: number;
    cdBlockMap: Int8Array<ArrayBuffer>;
    input: InputStream;
    constructor();
}
declare class InputStream {
    data: Uint8Array | Int8Array;
    offset: number;
    constructor(data: Uint8Array | Int8Array);
}
/**
 * Peek at brotli header to determine decoded size without allocating State/BrotliBitReader.
 * Returns the decoded size for single-metablock streams, or -1 if unknown.
 * Zero-allocation: reads bits directly from raw bytes.
 */
export declare function peekDecodedSize(bytes: Uint8Array | Int8Array): number;
/**
 * Decodes brotli stream.
 */
export declare function brotliDecode(bytes: Uint8Array | Int8Array, options?: BrotliDecodeOptions): Uint8Array;
export {};
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