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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 kill(self):
 """Murder the children of this service in front of it, and then murder the service itself."""

        if not self.is_dead():
            self.bundle_engine.warnline("{0} did not shut down cleanly, killing.".format(self.service.name))
            try:
                if hasattr(self.process, 'pid'):
                    for child in psutil.Process(self.process.pid).children(recursive=True):
                        os.kill(child.pid, signal.SIGKILL)
                    self.process.kill()
            except psutil.NoSuchProcess:
                pass