Monad_plus.Core_via_map_and_jointype 'a t = 'a Req.tThe type held by the Monad_plus.
include Preface_specs.Indexed_monad.WITH_RETURN
with type ('a, 'index) t := 'a tinclude Preface_specs.Indexed_monad.WITH_RETURN
with type ('a, 'index) t := 'a tinclude Preface_specs.Indexed_monad.WITH_RETURN
with type ('a, 'index) t := 'a tval return : 'a -> 'a tLift a value into a t.
val neutral : 'a tThe neutral element of the t.