downloadBytes function
Downloads bytes of type mimeType, saving a file with fileName.
Implementation
void downloadBytes(List<int> bytes, MimeType mimeType, String fileName) {
// A single typed array part (a part per byte would be stringified):
var blob = Blob(
[Uint8List.fromList(bytes).toJS].toJS,
BlobPropertyBag(type: mimeType.toString()),
);
downloadBlob(blob, fileName);
}