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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _send_event(self, title, text, tags, event_type, aggregation_key, severity='info'):
 """Emit an event to the Datadog Event Stream."""

        event_dict = {
            'timestamp': int(time()),
            'source_type_name': self.SOURCE_TYPE_NAME,
            'msg_title': title,
            'event_type': event_type,
            'alert_type': severity,
            'msg_text': text,
            'tags': tags,
            'aggregation_key': aggregation_key,
        }
        self.event(event_dict)