index.js
function unflatten(obj) {
	var out = {};
	_.forEach(obj, function(v, k) {
		_.set(out, k, v);
	});
	return out;
}
function unflatten(obj) {
	var out = {};
	_.forEach(obj, function(v, k) {
		_.set(out, k, v);
	});
	return out;
}
function unflatten ( obj ) { var out = { } ; _ . forEach ( obj , function ( v , k ) { _ . set ( out , k , v ) ; } ) ; return out ; }
Take a flattened object and return a nested object
@param {Object} obj The flattened object
@return {Object} The unflattened object
Take a flattened object and return a nested object