    # File lib/active_support/core_ext/module/attribute_accessors.rb, line 34
      def mattr_writer(*syms)
        options = syms.extract_options!
        syms.each do |sym|
          class_eval("unless defined? @@\#{sym}\n@@\#{sym} = nil\nend\n\ndef self.\#{sym}=(obj)\n@@\#{sym} = obj\nend\n\n\#{\"\ndef \#{sym}=(obj)\n@@\#{sym} = obj\nend\n\" unless options[:instance_writer] == false }\n", __FILE__, __LINE__)
        end
      end