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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 pexpire(self, key, timeout):
 """Set a milliseconds timeout on key. :raises TypeError: if timeout is not int """

        if not isinstance(timeout, int):
            raise TypeError("timeout argument must be int, not {!r}"
                            .format(timeout))
        fut = self.execute(b'PEXPIRE', key, timeout)
        return wait_convert(fut, bool)