Clears all streams in the channel - use with caution!

        :return: None

def purge_all(self, remove_definitions=False):
        """
        Clears all streams in the channel - use with caution!

        :return: None
        """
        for stream_id in list(self.streams.keys()):
            self.purge_stream(stream_id, remove_definition=remove_definitions)