code: @DoesServiceRequest
      public final void download(final OutputStream outStream) throws StorageException {
          this.download(outStream, null /* accessCondition */, null /* options */, null /* opContext */);
      }
docs: Downloads the contents of a file to a stream.
  
  @param outStream
  An <code>{@link OutputStream}</code> object that represents the target stream.
  @throws StorageException
  If a storage service error occurred.