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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 _install_signal_handlers(self):
 """ Sets up signal handlers for safely stopping the worker. """

        def request_stop(signum, frame):
            self._stop_requested = True
            self.log.info('stop requested, waiting for task to finish')
        signal.signal(signal.SIGINT, request_stop)
        signal.signal(signal.SIGTERM, request_stop)