def _timestamp_message(self, attrs):
        if self.timestamp_messages and 'timestamp' not in attrs:
            attrs['timestamp'] = _datetime_to_rfc3339(_NOW())
Resolve a given parsed value to a valid action parameter by calling a
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/pubsub/topic.py/Topic._timestamp_message--crossover with--dataset/ETHPy150Open twisted/imaginary/imaginary/action.py/Action.resolve