/**
 * Tiny helpers for collecting a `ReadableStream<Uint8Array>` into a concrete
 * buffer type. They wrap `new Response(stream)` so call sites don't have to
 * reach into the Fetch API for what is really just a stream-to-bytes
 * conversion.
 *
 * Today every encrypt/decrypt path inside the vault flow ends in one of
 * these because the surrounding transports (webdav PUT, Uppy + tus, blob
 * URLs) require sliceable bytes. Once a transport can consume a stream
 * directly, the corresponding call site loses the helper but the engine
 * API stays unchanged.
 */
export declare function streamToArrayBuffer(stream: ReadableStream<Uint8Array>): Promise<ArrayBuffer>;
export declare function streamToBlob(stream: ReadableStream<Uint8Array>, type?: string): Promise<Blob>;