Module Core_kernel__.Immediate_option_intf

module type S : sig ... end
module type Int : S with type immediate := Core_kernel__.Import.int and type t = private Core_kernel__.Import.int
module type Int63 : S with type immediate := Base.Int63.t and type t = private Base.Int63.t

Int63.t is only immediate on 64-bit platforms.

module type Immediate_option : sig ... end