Type.Polymorphic4
Same as Polymorphic for polymorphic types with four type variables.
Polymorphic
type ('a, 'b, 'c, 'd) poly
val instantiate : 'a t -> 'b t -> 'c t -> 'd t -> ('a, 'b, 'c, 'd) poly t * bool
val is_instance_of : 'a t -> bool
val get_instance : ('a, 'b, 'c, 'd) poly t -> 'a t * 'b t * 'c t * 'd t