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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 terminate(self):
 """Terminate the child process. It is not an error to call this method when the child has already exited. """

        try:
            self.send_signal(signal.SIGTERM)
        except pyuv.error.ProcessError as e:
            if e.args[0] != pyuv.errno.UV_ESRCH:
                raise