Set the value of key ``name`` to ``value`` that expires in ``time``
        seconds. ``time`` can be represented by an integer or a Python
        timedelta object.

def setex(self, name, time, value):
        """
        Set the value of key ``name`` to ``value`` that expires in ``time``
        seconds. ``time`` can be represented by an integer or a Python
        timedelta object.
        """
        if isinstance(time, datetime.timedelta):
            time = int(time.total_seconds())
        return self.execute_command('SETEX', name, time, value)