package preface
Parameter Syntax.Core
include Preface_specs.Monad.WITH_RETURN with type 'a t := 'a t
include Preface_specs.Monad.WITH_RETURN with type 'a t := 'a t
include Preface_specs.Monad.WITH_RETURN with type 'a t := 'a t
val return : 'a -> 'a tLift a value from 'a into a new 'a t.