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diff --git a/node_modules/date-fns/esm/differenceInCalendarISOWeekYears/index.js b/node_modules/date-fns/esm/differenceInCalendarISOWeekYears/index.js
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+import getISOWeekYear from "../getISOWeekYear/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name differenceInCalendarISOWeekYears
+ * @category ISO Week-Numbering Year Helpers
+ * @summary Get the number of calendar ISO week-numbering years between the given dates.
+ *
+ * @description
+ * Get the number of calendar ISO week-numbering years between the given dates.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @param {Date|Number} dateLeft - the later date
+ * @param {Date|Number} dateRight - the earlier date
+ * @returns {Number} the number of calendar ISO week-numbering years
+ * @throws {TypeError} 2 arguments required
+ *
+ * @example
+ * // How many calendar ISO week-numbering years are 1 January 2010 and 1 January 2012?
+ * const result = differenceInCalendarISOWeekYears(
+ *   new Date(2012, 0, 1),
+ *   new Date(2010, 0, 1)
+ * )
+ * //=> 2
+ */
+export default function differenceInCalendarISOWeekYears(dirtyDateLeft, dirtyDateRight) {
+  requiredArgs(2, arguments);
+  return getISOWeekYear(dirtyDateLeft) - getISOWeekYear(dirtyDateRight);
+}
+\ No newline at end of file