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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 stop(self):
 """Stop execution of all current and future payloads"""

        if not self.running.wait(0.2):
            return
        self._logger.debug('runner disabled: %s', self)
        with self._lock:
            self.running.clear()
        self._stopped.wait()