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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 signal_children(self, signum):
 """Send a signal to all children :param int signum: The signal to send """

        LOGGER.info('Sending signal %i to children', signum)
        for child in self.living_children:
            if child.pid != os.getpid():
                os.kill(child.pid, signum)