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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _push_from_buffer(self):
 """ Push a message on the stack to the IRC stream. This is necessary to avoid Twitch overflow control. """

        if len(self.buffer) > 0:
            if time.time() - self.last_sent_time > 5:
                try:
                    message = self.buffer.pop(0)
                    self.s.send(message.encode('utf-8'))
                    if self.verbose:
                        print(message)
                finally:
                    self.last_sent_time = time.time()