| 12345678910111213141516171819 | module.exports = extendvar hasOwnProperty = Object.prototype.hasOwnProperty;function extend() {    var target = {}    for (var i = 0; i < arguments.length; i++) {        var source = arguments[i]        for (var key in source) {            if (hasOwnProperty.call(source, key)) {                target[key] = source[key]            }        }    }    return target}
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