def track_event(self, event, session, visitor):
        event.validate()

        params = {
            'config': self.config,
            'tracker': self,
            'visitor': visitor,
            'session': session,
            'event': event,
        }
        request = EventRequest(**params)
        request.fire()
Equivalent of _trackEvent() in GA Javascript client.
dataset/ETHPy150Open kra3/py-ga-mob/pyga/requests.py/Tracker.track_event