1
export function asBodyInit(bytes: Uint8Array): BodyInit {
2
  return bytes as unknown as BodyInit;
3
}
4
 
5
export function asBlobPart(bytes: Uint8Array): BlobPart {
6
  return bytes as unknown as BlobPart;
7
}
8
 
9
export function asBufferSource(bytes: Uint8Array): BufferSource {
10
  return bytes as unknown as BufferSource;
11
}
12
 
13
export function createBlobFromBytes(bytes: Uint8Array): Blob {
14
  return new Blob([asBlobPart(bytes)]);
15
}
16
 
17
export function asByteTransformStream(
18
  stream: CompressionStream | DecompressionStream
19
): TransformStream<Uint8Array, Uint8Array> {
20
  return stream as unknown as TransformStream<Uint8Array, Uint8Array>;
21
}
22
 
23
export function createDigestStream(algorithm: string): WritableStream<Uint8Array> & {
24
  digest: Promise<ArrayBuffer>;
25
  getWriter(): WritableStreamDefaultWriter<Uint8Array>;
26
} {
27
  const DigestCtor = (crypto as Crypto & { DigestStream: typeof DigestStream }).DigestStream;
28
  return new DigestCtor(algorithm) as WritableStream<Uint8Array> & {
29
    digest: Promise<ArrayBuffer>;
30
    getWriter(): WritableStreamDefaultWriter<Uint8Array>;
31
  };
32
}