prow/hook/events.go
func genericCommentAction(action string) github.GenericCommentEventAction {
	switch action {
	case "created", "opened", "submitted":
		return github.GenericCommentActionCreated
	case "edited":
		return github.GenericCommentActionEdited
	case "deleted", "dismissed":
		return github.GenericCommentActionDeleted
	}
	// The action is not related to the text body.
	return ""
}
func genericCommentAction(action string) github.GenericCommentEventAction {
	switch action {
	case "created", "opened", "submitted":
		return github.GenericCommentActionCreated
	case "edited":
		return github.GenericCommentActionEdited
	case "deleted", "dismissed":
		return github.GenericCommentActionDeleted
	}
	// The action is not related to the text body.
	return ""
}
// genericCommentAction normalizes the action string to a GenericCommentEventAction or returns ""
// if the action is unrelated to the comment text. (For example a PR 'label' action.)