function startOfISOWeek(dirtyDate) {
  __WEBPACK_IMPORTED_MODULE_1__lib_requiredArgs_index_js__["a" /* default */](1, arguments);
  return __WEBPACK_IMPORTED_MODULE_0__startOfWeek_index_js__["a" /* default */](dirtyDate, {
    weekStartsOn: 1
  });
}
@name startOfISOWeek
@category ISO Week Helpers
@summary Return the start of an ISO week for the given date.

@description
Return the start of an ISO week for the given date.
The result will be in the local timezone.

ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date

### v2.0.0 breaking changes:

- [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).

@param {Date|Number} date - the original date
@returns {Date} the start of an ISO week
@throws {TypeError} 1 argument required

@example
// The start of an ISO week for 2 September 2014 11:55:00:
var result = startOfISOWeek(new Date(2014, 8, 2, 11, 55, 0))
//=> Mon Sep 01 2014 00:00:00