Monad_plus.For_monoidalmodule M : Preface_specs.MONAD_PLUSinclude Indexed_monad_plus.LAWS_MONOID with type ('a, _) t := 'a M.tinclude Indexed_monad.LAWS with type ('a, 'index) t := 'a M.tinclude Indexed_bind.LAWS with type ('a, 'index) t := 'a M.t