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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 unlink(self):
 """Remove the daemon's pid file :return: None """

        logger.debug("Unlinking %s", self.pid_filename)
        try:
            os.unlink(self.pid_filename)
        except OSError as exp:
            logger.debug("Got an error unlinking our pid file: %s", exp)