Module Or_error.Stable

module Stable: sig .. end

module V1: Stable_module_types.S1  with type 'a t = 'a t
Or_error.t is wire compatible with V2.t, but not V1.t, like Info.Stable and Error.Stable.
module V2: Stable_module_types.S1  with type 'a t = 'a t