import { type ByteSource, type IOResult } from './types.ts';
export declare function mergeStdoutStderr(stdout: ByteSource | null, io: IOResult): AsyncIterable<Uint8Array>;
export declare function wrapCachableStreams(stdout: ByteSource | null, io: IOResult): [ByteSource | null, IOResult];
export declare function exitOnEmpty(stream: AsyncIterable<Uint8Array>, io: IOResult): AsyncIterable<Uint8Array>;
export declare function drain(stream: ByteSource | null): Promise<void>;
export declare function closeQuietly(stream: ByteSource | null): Promise<void>;
export declare function asyncChain(...streams: (ByteSource | null)[]): AsyncIterable<Uint8Array>;
export declare function yieldBytes(data: Uint8Array): AsyncIterable<Uint8Array>;
export declare function quietMatch(stream: AsyncIterable<Uint8Array>, io: IOResult): AsyncIterable<Uint8Array>;
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