How to use the @material/floating-label/foundation.js.MDCFloatingLabelFoundation function in @material/floating-label

export const floatingLabel = directive(() => (part: PropertyPart) => {
  const lastFoundation = partToFoundationMap.get(part);
  if (!lastFoundation) {
    const labelElement = part.committer.element as FloatingLabel;
    labelElement.classList.add('mdc-floating-label');
    const adapter = createAdapter(labelElement);
    const foundation = new MDCFloatingLabelFoundation(adapter);
    foundation.init();
    part.setValue(foundation);
    partToFoundationMap.set(part, foundation);
  }
});