Method toggleLoading

src/base-element.js:804–806

* Hides or shows the loading indicator. * @param {boolean} state * @param {boolean=} force * @public @final

(state, force = false)

   * @public @final
   */
  toggleLoading(state, force = false) {
    this.element.toggleLoading(state, force);
  }

  /**
   * Returns an optional overflow element for this custom element.