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export default (function (o, c) {
var proto = c.prototype;
proto.weekYear = function () {
var month = this.month();
var weekOfYear = this.week();
var year = this.year();
if (weekOfYear === 1 && month === 11) {
return year + 1;
}
if (month === 0 && weekOfYear >= 52) {
return year - 1;
}
return year;
};
});