func identifyUser(client *analytics.Client, userID string) {
	err := client.Identify(&analytics.Identify{
		UserId: userID,
	})
	if err != nil {
		log.Errorf("error reporting user identity to Segment: %s", err.Error())
	}
}
func identifyUser(client *analytics.Client, userID string) {
	err := client.Identify(&analytics.Identify{
		UserId: userID,
	})
	if err != nil {
		log.Errorf("error reporting user identity to Segment: %s", err.Error())
	}
}
/*
Segment needs us to identify a user before we report any events for that user.
We have no way of knowing if a user has previously been identified, so we call this
before every `Track()` call containing user data.
*/