code: def reprioritize(self, stream_id,
                       depends_on=None, weight=16, exclusive=False):
          
          self._priority.reprioritize(stream_id, depends_on, weight, exclusive)
docs: Update the priority status of an existing stream.
  
          :param stream_id: The stream ID of the stream being updated.
          :param depends_on: (optional) The ID of the stream that the stream now
              depends on. If ``None``, will be moved to depend on stream 0.
          :param weight: (optional) The new weight to give the stream. Defaults
              to 16.
          :param exclusive: (optional) Whether this stream should now be an
              exclusive dependency of the new parent.