Create/update an event.

def put(self, event_type, event_data={}, **kwargs):
        """
        Create/update an event.
        """
        event = dict(type=event_type, data=event_data)

        event["time"] = kwargs.get("time", datetime.utcnow().isoformat())

        if kwargs.get("id"):
            event["id"] = kwargs.get("id")

        data = json.dumps([event])

        r = requests.post(self.collector_url + 'event/put',
                          data=data,
                          headers={'content-type': 'application/json'})
        r.raise_for_status()

        return [event]