Method loadPromise

src/base-element.js:675–677

* Returns a promise that will resolve or fail based on the element's 'load' * and 'error' events. * @param {T} element * @return {!Promise } * @template T * @final

(element)

   * @final
   */
  loadPromise(element) {
    return loadPromise(element);
  }

  /**
   * Registers the action handler for the method with the specified name.