You can search for identifiers within the package.
in-package search v0.2.0
merlin-lib.ocaml_utils
Ocaml_utils.Numbers
Modules about numbers, some of which satisfy Identifiable.S.
Identifiable.S
Warning: this module is unstable and part of compiler-libs.
module Int : sig ... end
module Int8 : sig ... end
module Int16 : sig ... end
module Float : Identifiable.S with type t = float