Lifecycle.Collectiontype nonrec t = t Path.Map.tval has_after_display : t -> boolval get_before_display : old:t -> new_:t -> unit Ui_effect.t optionGets the before_displays that occur in new_ but not old. If you want all the before_displays, use ~old:empty. Returns None if there are no before_displays left to run.
val get_after_display : old:t -> new_:t -> unit Ui_effect.tGathers the activations and deactivations that have occurred between old and new_, as well as all the after_displays in new_.
val empty : t