include module type of struct include Stdlib.Option end
type !'a t = 'a option = | None| Some of 'a
val some : 'a -> 'a optionval value : 'a option -> default:'a -> 'aval get : 'a option -> 'aval join : 'a option option -> 'a optionval product : 'a option -> 'b option -> ('a * 'b) optionval fold : none:'a -> some:('b -> 'a) -> 'b option -> 'aval blend : ('a -> 'a -> 'a) -> 'a option -> 'a option -> 'a optionval for_all : ('a -> bool) -> 'a option -> boolval exists : ('a -> bool) -> 'a option -> boolval is_none : 'a option -> boolval is_some : 'a option -> boolval equal : ('a -> 'a -> bool) -> 'a option -> 'a option -> boolval compare : ('a -> 'a -> int) -> 'a option -> 'a option -> intval to_result : none:'e -> 'a option -> ('a, 'e) Stdlib.resultval to_list : 'a option -> 'a listval to_seq : 'a option -> 'a Stdlib.Seq.tmodule Syntax : sig ... endval map : f:('a -> 'b) -> 'a option -> 'b optionval bind : 'a option -> f:('a -> 'b option) -> 'b optionval iter : f:('a -> unit) -> 'a option -> unitval first_some : 'a option -> 'a option -> 'a optionval all : 'a t list -> 'a list tval value_map : f:('a -> 'b) -> default:'b -> 'a t -> 'bval some_if : bool -> 'a -> 'a t