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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 monitor(self, listener):
 """Relay the stream to listener until told to stop. """

        for line in self._stream():
            self._record.append(line)
            if self.verbose:
                self.out.blather(line)
            if listener(line) is self.MONITOR_STOP:
                return