def post_events(self, events):

        """
        Posts a single event to the Keen IO API. The write key must be set first.

        :param events: an Event to upload
        """

        url = "{0}/{1}/projects/{2}/events".format(self.base_url, self.api_version,
                                                   self.project_id)
        headers = utilities.headers(self.write_key)
        payload = json.dumps(events)
        response = self.fulfill(HTTPMethods.POST, url, data=payload, headers=headers, timeout=self.post_timeout)
        self._error_handling(response)
        return self._get_response_json(response)