# File lib/spec/example/example_group_methods.rb, line 49
      def describe(*args, &example_group_block)
        if example_group_block
          Spec::Example::set_location(args, caller(0)[1])
          options = args.last
          if options[:shared]
            ExampleGroupFactory.create_shared_example_group(*args, &example_group_block)
          else
            subclass(*args, &example_group_block)
          end
        else
          set_description(*args)
        end
      end