# File lib/active_model/naming.rb, line 26
    def human(options={})
      return @human unless @klass.respond_to?(:lookup_ancestors) &&
                           @klass.respond_to?(:i18n_scope)

      defaults = @klass.lookup_ancestors.map do |klass|
        [klass.model_name.i18n_key,
         klass.model_name.i18n_key.to_s.tr('.', '/').to_sym]
      end.flatten

      defaults << options.delete(:default) if options[:default]
      defaults << @human

      options.reverse_merge! :scope => [@klass.i18n_scope, :models], :count => 1, :default => defaults
      I18n.translate(defaults.shift, options)
    end