code: public T longPress(PointOption longPressOptions) {
          ActionParameter action = new ActionParameter("longPress", longPressOptions);
          parameterBuilder.add(action);
          //noinspection unchecked
          return (T) this;
      }
docs: Press and hold the at the center of an element until the context menu event has fired.
  
  @param longPressOptions see {@link PointOption} and {@link ElementOption}.
  @return this TouchAction, for chaining.