record
Records a Glean event that this feature has been exposed. If the feature is not involved in an experiment, then the event is suppressed. If the feature is only involved in a rollout, then the event is suppressed. If the feature is involved in an experiment, then record the experiment slug and branch. If the feature is involved in an experiment and a rollout, then record only the experiment slug and branch. If the slug is specified, then use this as the experiment, and use it to look up the branch. This is useful for coenrolling features.