You can search for identifiers within the package.
in-package search v0.2.0
val s : t -> int
val s_float : t -> float
val m : t -> int
val h : t -> int
val day : t -> int
val month : t -> int
val year : t -> int
val human : t -> human_readable
val generate_printer : string -> printer option
val string : printer -> t -> string
val default_printer : printer