3
external force : 'a t -> 'a = "%lazy_force"
4
val force_val : 'a t -> 'a
5
val from_fun : (unit -> 'a) -> 'a t
6
val from_val : 'a -> 'a t
7
val is_val : 'a t -> bool
8
val lazy_from_fun : (unit -> 'a) -> 'a t
9
val lazy_from_val : 'a -> 'a t
10
val lazy_is_val : 'a t -> bool