export declare class CachableAsyncIterator implements AsyncIterableIterator<Uint8Array> {
    private source;
    private readonly buffer;
    private exhaustedFlag;
    constructor(source: AsyncIterable<Uint8Array>);
    wrapSource(fn: (src: AsyncIterable<Uint8Array>) => AsyncIterable<Uint8Array>): void;
    get exhausted(): boolean;
    get bufferedChunks(): readonly Uint8Array[];
    [Symbol.asyncIterator](): AsyncIterableIterator<Uint8Array>;
    next(): Promise<IteratorResult<Uint8Array>>;
    drain(): Promise<Uint8Array>;
    drainBounded(maxBytes: number): Promise<Uint8Array | null>;
    private closeAndDiscard;
}
export declare function concat(chunks: readonly Uint8Array[]): Uint8Array;
//# sourceMappingURL=cachable_iterator.d.ts.map