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'use strict';
module.exports = function join(glue, finalGlue) {
var collection = this.values();
if (finalGlue === undefined) {
return collection.implode(glue);
}
var count = collection.count();
if (count === 0) {
return '';
}
if (count === 1) {
return collection.last();
}
var finalItem = collection.pop();
return collection.implode(glue) + finalGlue + finalItem;
};