# File lib/quickbooks/model.rb, line 10
      def inherited(klass)
        def klass.valid_filters
          (superclass.valid_filters + (@valid_filters ||= []))
        end
        def klass.filter_aliases
          superclass.filter_aliases.slashed.merge(@filter_aliases ||= {}.slashed)
        end
        klass.instance_variable_set('@object_properties', {})
      end