import { FileBoxChunk } from '@chatie/grpc';
import { FileBox } from 'wechaty-puppet';
import { Readable } from 'stronger-typed-streams';
declare function unpackFileBoxFromChunk(stream: Readable<FileBoxChunk>): Promise<FileBox>;
declare function packFileBoxToChunk(fileBox: FileBox): Promise<Readable<FileBoxChunk>>;
export { unpackFileBoxFromChunk, packFileBoxToChunk, };
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