static <T0, T1, T2, T3> TupleGetter3<Tuple4OfNullables<T0, T1, T2, T3>, T3> getterOrNull3() {
        return Tuple4OfNullables::getOrNull3;
    }
Returns a {@link TupleGetter getter} for the 3rd element in the {@code
Tuple}.

@return     the element at the 3rd position
@param <T0> the 0th element type
@param <T1> the 1st element type
@param <T2> the 2nd element type
@param <T3> the 3rd element type
common-parent/tuple/src/main/java/com/speedment/common/tuple/nullable/Tuple4OfNullables.java