You can search for identifiers within the package.
in-package search v0.2.0
Located queries
module P : Point
type ('a, 'r) query = doc:Doc.t -> point:P.t -> 'a -> 'r option
val goals : (approx, Coq.Goals.reified_pp) query
val info : (approx, string) query
val completion : (string, string list) query