# File lib/monkey/ext.rb, line 16
      def core_class(klass = nil)
        if klass
          @core_class = klass
          klass.send :include, self
          self::ExtClassMethods.extend ClassDsl
          self::ExtClassMethods.core_class @core_class
          @core_class.class_eval "def method_missing(meth, *args, &blk)\nreturn super if Monkey::Backend.setup?\nMonkey::Backend.setup\n__send__(meth, *args, &blk)\nend\n"
          propagate_include
        end
        @core_class
      end