--- /dev/null
+/* eslint-disable no-unused-vars */
+'use strict';
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+var propIsEnumerable = Object.prototype.propertyIsEnumerable;
+
+function toObject(val) {
+ if (val === null || val === undefined) {
+ throw new TypeError('Object.assign cannot be called with null or undefined');
+ }
+
+ return Object(val);
+}
+
+module.exports = Object.assign || function (target, source) {
+ var from;
+ var to = toObject(target);
+ var symbols;
+
+ for (var s = 1; s < arguments.length; s++) {
+ from = Object(arguments[s]);
+
+ for (var key in from) {
+ if (hasOwnProperty.call(from, key)) {
+ to[key] = from[key];
+ }
+ }
+
+ if (Object.getOwnPropertySymbols) {
+ symbols = Object.getOwnPropertySymbols(from);
+ for (var i = 0; i < symbols.length; i++) {
+ if (propIsEnumerable.call(from, symbols[i])) {
+ to[symbols[i]] = from[symbols[i]];
+ }
+ }
+ }
+ }
+
+ return to;
+};