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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 read(self, size):
 """Read bytes from the stream and block until sample rate is achieved. Args: size: number of bytes to read from the stream. """

        now = time.time()
        missing_dt = self._sleep_until - now
        if missing_dt > 0:
            time.sleep(missing_dt)
        self._sleep_until = time.time() + self._sleep_time(size)
        data = (self._wavep.readframes(size)
                if self._wavep
                else self._fp.read(size))
        #  When reach end of audio stream, pad remainder with silence (zeros).
        if not data:
            return b'\x00' * size
        return data