module Option:sig
..end
with type span := t
typet = private
Core_kernel.Std.Int63.t
val typerep_of_t : t Typerep_lib.Std.Typerep.t
val typename_of_t : t Typerep_lib.Std.Typename.t
include Identifiable
val none : t
val some : t -> t
val is_none : t -> bool
val is_some : t -> bool
val value : t ->
default:t -> t
val value_exn : t -> t
module Stable:sig
..end