src/third_party/web_platform_tests/resources/webidl2/test/syntax/idl/enum.widl

enum MealType { "rice", "noodles", "other" };

interface Meal {
  attribute MealType type;
  attribute float size;     // in grams

  void initialize(MealType type, float size);
};

enum AltMealType { "rice", "noodles", "other", };