Pickles_types.Hlist0module Id : sig ... endThe type-level identity function.
module Length : sig ... endLength encodes the length of lists as Peano integers.
module H1 (F : Poly_types.T1) : sig ... endH1 is the datatype of heterogeneous lists whose content type varies over a single type parameter.
module H1_1 (F : Poly_types.T2) : sig ... endH1_1 is the datatype of heterogeneous lists whose content type varies over a single type parameter, but also varies homogeneously over another type parameter.
module HlistId : sig ... endHlistId is the simplest heteregeneous list.