@SuppressWarnings("unchecked")
    @Override
    public Optional<T11> get11() {
        return Optional.ofNullable((T11) values[11]);
    }
Constructs a {@link MutableTuple} of type {@link MutableTuple13}.
common-parent/tuple/src/main/java/com/speedment/common/tuple/internal/mutable/MutableTuple13Impl.java