static <T0> TupleGetter0<Tuple1OfNullables<T0>, T0> getterOrNull0() {
        return Tuple1OfNullables::getOrNull0;
    }
Returns a {@link TupleGetter getter} for the 0th element in the {@code
Tuple}.

@return     the element at the 0th position
@param <T0> the 0th element type
common-parent/tuple/src/main/java/com/speedment/common/tuple/nullable/Tuple1OfNullables.java