| 123456789101112131415161718192021222324252627282930313233343536373839 | 'use strict';var propIsEnumerable = Object.prototype.propertyIsEnumerable;function ToObject(val) {	if (val == null) {		throw new TypeError('Object.assign cannot be called with null or undefined');	}	return Object(val);}function ownEnumerableKeys(obj) {	var keys = Object.getOwnPropertyNames(obj);	if (Object.getOwnPropertySymbols) {		keys = keys.concat(Object.getOwnPropertySymbols(obj));	}	return keys.filter(function (key) {		return propIsEnumerable.call(obj, key);	});}module.exports = Object.assign || function (target, source) {	var from;	var keys;	var to = ToObject(target);	for (var s = 1; s < arguments.length; s++) {		from = arguments[s];		keys = ownEnumerableKeys(Object(from));		for (var i = 0; i < keys.length; i++) {			to[keys[i]] = from[keys[i]];		}	}	return to;};
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