You can search for identifiers within the package.
in-package search v0.2.0
from_gui.ml
1 2 3 4 (* generated by dune *) (** @canonical From_gui.From_register_gui *) module From_register_gui = From_gui__From_register_gui
1 2 3 4
(* generated by dune *) (** @canonical From_gui.From_register_gui *) module From_register_gui = From_gui__From_register_gui