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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_process(self):
 """Stop the process"""

        if self.process.poll() is not None:
            return
        try:
            if hasattr(self.process, 'terminate'):
                self.process.terminate()
            elif os.name != 'nt':
                os.kill(self.process.pid, 9)
            else:
                import ctypes
                handle = int(self.process._handle)
                ctypes.windll.kernel32.TerminateProcess(handle, -1)
        except OSError:
            pass