Set an expire flag on key ``name`` for ``time`` milliseconds.
        ``time`` can be represented by an integer or a Python timedelta
        object.

def pexpire(self, name, time):
        """
        Set an expire flag on key ``name`` for ``time`` milliseconds.
        ``time`` can be represented by an integer or a Python timedelta
        object.
        """
        if isinstance(time, datetime.timedelta):
            time = int(time.total_seconds() * 1000)
        return self.execute_command('PEXPIRE', name, time)