code: public final Tuple2<Tuple12<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>, Tuple3<T13, T14, T15>> split12() {
          return new Tuple2<>(limit12(), skip12());
      }
docs: Split this tuple into two tuples of degree 12 and 3.