protected_attributes_configs

# File activemodel/lib/active_model/mass_assignment_security.rb, line 189
      def protected_attributes_configs
        self._protected_attributes ||= begin
          default_black_list = BlackList.new(attributes_protected_by_default).tap do |w|
            w.logger = self.logger if self.respond_to?(:logger)
          end
          Hash.new(default_black_list)
        end
      end