    # File lib/active_support/core_ext/module/introspection.rb, line 65
            def local_constants
              inherited = {}

              ancestors.each do |anc|
                next if anc == self
                anc.constants.each { |const| inherited[const] = anc.const_get(const) }
              end

              constants.select do |const|
                !inherited.key?(const) || inherited[const].object_id != const_get(const).object_id
              end
            end