Caml_option (melange.Caml

type nested = {

}

val nullable_to_opt : 'a Js.null_undefined -> 'a option

val undefined_to_opt : 'a Js.undefined -> 'a option

val null_to_opt : 'a Js.null -> 'a option

val valFromOption : Bs_stdlib_mini.Obj.t -> Bs_stdlib_mini.Obj.t

val some : Bs_stdlib_mini.Obj.t -> Bs_stdlib_mini.Obj.t

val isNested : Bs_stdlib_mini.Obj.t -> bool

val option_get : 
  Bs_stdlib_mini.Obj.t option ->
  Bs_stdlib_mini.Obj.t Caml_undefined_extern.t

type poly

val option_unwrap : poly option -> Bs_stdlib_mini.Obj.t

When it is None, return none When it is (Some (`a 3)) return 3