@Override
    public <C> Stream<C> streamOf(Class<C> clazz) {
        requireNonNull(clazz);
        return Stream.of(values)
            .filter(clazz::isInstance)
            .map(clazz::cast);
    }
Returns if this Tuple can contain null elements.

@return if this Tuple can contain null elements
common-parent/tuple/src/main/java/com/speedment/common/tuple/internal/BasicAbstractTuple.java