instance method unpermitted_parameters!

# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 1272
      def unpermitted_parameters!(params, on_unpermitted: self.class.action_on_unpermitted_parameters)
        return unless on_unpermitted
        unpermitted_keys = unpermitted_keys(params)
        if unpermitted_keys.any?
          case on_unpermitted
          when :log
            name = "unpermitted_parameters.action_controller"
            ActiveSupport::Notifications.instrument(name, keys: unpermitted_keys, context: @logging_context)
          when :raise
            raise ActionController::UnpermittedParameters.new(unpermitted_keys)
          end
        end
      end