You can search for identifiers within the package.
in-package search v0.2.0
codex.lattices
Lattices.Unimplemented
module Enum_Lattice (UnimplementedId : sig ... end) : sig ... end
module Bitvector_Lattice (UnimplementedId : sig ... end) : sig ... end
module Integer_Lattice (UnimplementedId : sig ... end) : sig ... end