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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 get_exitstatus(self):
 """Get the exit status of the program execution. Returns: int: Exit status as reported by the operating system, or None if it is not available. """

        logger.debug("Exit status is {0}".format(self._spawn.exitstatus))
        return self._spawn.exitstatus