>>>
/**
 * Returns a Map from locale names to another Map that goes from skeletons
 * to the locale-specific formatting patterns.
 * Internal use only. Call initializeDateFormatting instead.
 **/Map dateTimePatternMap() => const {
  /**
   * Extended set of localized date/time patterns for locale af.
   */
  'af' : const {
    'd': 'd', // DAY
  }
};
<<<
/**
 * Returns a Map from locale names to another Map that goes from skeletons
 * to the locale-specific formatting patterns.
 * Internal use only. Call initializeDateFormatting instead.
 **/
Map dateTimePatternMap() => const {
      /**
   * Extended set of localized date/time patterns for locale af.
   */
      'af': const {
        'd': 'd', // DAY
      }
    };