Method create

third_party/subscriptions-project/swg.js:8774–8777

* @param {!../api/subscriptions.ButtonOptions|function()} optionsOrCallback * @param {function()=} callback * @return {!Element}

(optionsOrCallback, callback)

   * @return {!Element}
   */
  create(optionsOrCallback, callback) {
    const button = createElement(this.doc_.getWin().document, 'button', {});
    return this.attach(button, optionsOrCallback, callback);
  }

  /**
   * Attaches the Classic 'Subscribe With Google' button.