How to use the material-components-web.autoInit function in material-components-web

mounted () {
    // code here executes once the component is rendered
    autoInit(this.$el) // reapply MDCRipple to all mdc-list-item
  },
  methods: {

attached() {
        const hasMdcElements = this.config.mdcClasses.some(cls => {
            return this.element.classList.contains(cls);
        });

        if (!hasMdcElements) return;

        autoInit(this.element.parentNode, () => { });
    }
}

attached() {
        const hasMdcElements = this.config.mdcClasses.some(cls => {
            return this.element.classList.contains(cls);
        });

        if (!hasMdcElements) return;

        autoInit(this.element.parentNode, () => {});
    }
}) || _class) || _class);