You can search for identifiers within the package.
in-package search v0.2.0
fmlib_native.ml
1 2 3 4 (* generated by dune *) (** @canonical Fmlib_native.Native_io *) module Native_io = Fmlib_native__Native_io
1 2 3 4
(* generated by dune *) (** @canonical Fmlib_native.Native_io *) module Native_io = Fmlib_native__Native_io