module Time_ns : sig ... end
module Zone : sig ... end
module type Gen = sig ... end
module type Gen_set = sig ... end
module type S = sig ... end
module type S1 = sig ... end
module type S_time = sig ... end
module type Interval = sig ... end
Module for simple closed intervals over arbitrary types. Used by calling the Make
functor with a type that satisfies Comparable
(for correctly ordering elements).