Module type Js_min.OPT
val empty : 'a tval return : 'a -> 'a tval map : 'a t -> ('a -> 'b) -> 'b tval bind : 'a t -> ('a -> 'b t) -> 'b tval test : 'a t -> boolval iter : 'a t -> ('a -> unit) -> unitval case : 'a t -> (unit -> 'b) -> ('a -> 'b) -> 'bval get : 'a t -> (unit -> 'a) -> 'aval option : 'a option -> 'a tval to_option : 'a t -> 'a option