# File lib/spec/example/example_group_methods.rb, line 73
      def example(description=nil, options={}, backtrace=nil, &implementation)
        example_description = ExampleDescription.new(description, options, backtrace || caller(0)[1])
        example_descriptions << example_description
        example_implementations[example_description] = implementation || pending_implementation
        example_description
      end