# File lib/spec/example/example_group_factory.rb, line 78
        def determine_superclass(opts)
          key = if opts[:type]
            opts[:type]
          elsif opts[:spec_path] =~ /spec(\\|\/)(#{@example_group_types.keys.join('|')})/
            $2 == '' ? nil : $2.to_sym
          end
          get(key)
        end