How to use the @material/radio/foundation function in @material/radio

mounted() {
    const adapter = {
      addClass: className => this.$set(this.classes, className, true),
      removeClass: className => this.$delete(this.classes, className),

      setNativeControlDisabled: disabled =>
        this.$refs.controlEl && this.$refs.controlEl.disabled == disabled,
    };

    // add foundation
    this.foundation = new MDCRadioFoundation(adapter);

    // add ripple
    this.ripple = new RippleBase(this, {
      isUnbounded: () => true,

      // Radio buttons technically go "active" whenever there is *any* keyboard interaction. This is not the
      // UI we desire.
      isSurfaceActive: () => false,
      registerInteractionHandler: (evt, handler) => {
        this.$refs.controlEl.addEventListener(evt, handler, applyPassive());
      },
      deregisterInteractionHandler: (evt, handler) => {
        this.$refs.controlEl.removeEventListener(evt, handler, applyPassive());
      },
      computeBoundingRect: () => {
        return this.$refs.root.getBoundingClientRect();

mounted() {
    const adapter = {
      addClass: className => this.$set(this.classes, className, true),
      removeClass: className => this.$delete(this.classes, className),

      setNativeControlDisabled: disabled =>
        this.$refs.controlEl && this.$refs.controlEl.disabled == disabled,
    };

    // add foundation
    this.foundation = new MDCRadioFoundation(adapter);

    // add ripple
    this.ripple = new RippleBase(this, {
      isUnbounded: () => true,

      // Radio buttons technically go "active" whenever there is *any* keyboard interaction. This is not the
      // UI we desire.
      isSurfaceActive: () => false,
      registerInteractionHandler: (evt, handler) => {
        this.$refs.controlEl.addEventListener(evt, handler, applyPassive());
      },
      deregisterInteractionHandler: (evt, handler) => {
        this.$refs.controlEl.removeEventListener(evt, handler, applyPassive());
      },
      computeBoundingRect: () => {
        return this.$refs.root.getBoundingClientRect();