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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 run(self):
 """ Play loop, i.e. send all sound chunk by chunk to the soundcard. """

        self.running = True

        def chunks_producer():
            while self.running:
                self.chunks.put(self.next_chunks())

        t = Thread(target=chunks_producer)
        t.start()

        with self.BackendStream(samplerate=self.sr, channels=1) as stream:
            while self.running:
                try:
                    stream.write(self.chunks.get(timeout=self.timeout))  # timeout so stream.write() thread can exit
                except Empty:
                    self.running = False