rxbinding/src/main/java/com/ogaclejapan/rx/binding/RxActions.java
public static <T extends ImageView> RxAction<T, Integer> setImageLevel() {
    return new RxAction<T, Integer>() {
      @Override
      public void call(T view, Integer level) {
        view.setImageLevel(level);
      }
    };
  }
public static <T extends ImageView> RxAction<T, Integer> setImageLevel() {
    return new RxAction<T, Integer>() {
      @Override
      public void call(T view, Integer level) {
        view.setImageLevel(level);
      }
    };
  }
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