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|
(* TEST
* expect
*)
type 'a or_error = string
type ('a, 'b) t_ =
| Bar : ('a, 'a or_error) t_
type 'a t = ('a, 'a) t_
let f : type a. a t -> a t = function
| Bar -> Bar
;;
[%%expect{|
type 'a or_error = string
type ('a, 'b) t_ = Bar : ('a, 'a or_error) t_
type 'a t = ('a, 'a) t_
val f : 'a t -> 'a t = <fun>
|}];;
|
