# File lib/rspec/core/example_group.rb, line 124
      def self.find_and_eval_shared(label, name, *args, &customization_block)
        raise ArgumentError, "Could not find shared #{label} #{name.inspect}" unless
          shared_block = world.shared_example_groups[name]

        module_eval_with_args(*args, &shared_block)
        module_eval(&customization_block) if customization_block
      end