You can search for identifiers within the package.
in-package search v0.2.0
elpi.compiler
Compiler_data.Arity
type t = int * Elpi_util.Util.Loc.t
val pp : Ppx_deriving_runtime.Format.formatter -> t -> Ppx_deriving_runtime.unit
val show : t -> Ppx_deriving_runtime.string
val compare : t -> t -> Ppx_deriving_runtime.int