导入模块noty js v2

我不知道如何正确导入模块？

现在是这样的：

import noty from 'noty'


window.mindy = {
    notify: (text, type = 'success') => {
        noty({
            text: text,
            type: type,
            theme: 'metroui',
            layout: 'topRight',
            timeout: false,
            progressBar: false,
            closeWith: ['click'],
            animation: {
                open: { height: 'toggle' },
                close: { height: 'toggle' },
                easing: 'swing',
                speed: 300,
            },
        })
    },
}

但它给出了一个错误

noty.js:2349

function _classCallCheck(instance, Constructor) { if (!
(instance instanceof Constructor)) { throw new TypeError("Cannot call 
a class as a function"); } }

noty.js:2359

_classCallCheck(this, Noty)