<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def push(self, filename, data):
 """Push a chunk of a file to the streaming endpoint. Args: filename: Name of file that this is a chunk of. chunk_id: TODO: change to 'offset' chunk: File data. """

        self._queue.put(Chunk(filename, data))