constructor() {
    /** @type {string} */
    this.YEAR_FULL;

    /** @type {string} */
    this.YEAR_FULL_WITH_ERA;

    /** @type {string} */
    this.YEAR_MONTH_ABBR;

    /** @type {string} */
    this.YEAR_MONTH_FULL;

    /** @type {string} */
    this.YEAR_MONTH_SHORT;

    /** @type {string} */
    this.MONTH_DAY_ABBR;

    /** @type {string} */
    this.MONTH_DAY_FULL;

    /** @type {string} */
    this.MONTH_DAY_SHORT;

    /** @type {string} */
    this.MONTH_DAY_MEDIUM;

    /** @type {string} */
    this.MONTH_DAY_YEAR_MEDIUM;

    /** @type {string} */
    this.WEEKDAY_MONTH_DAY_MEDIUM;

    /** @type {string} */
    this.WEEKDAY_MONTH_DAY_YEAR_MEDIUM;

    /** @type {string} */
    this.DAY_ABBR;

    /** @type {string} */
    this.MONTH_DAY_TIME_ZONE_SHORT;
  }
The type definition for date/time patterns.
@record