@Override
    public final @NonNull Object @NonNull [] toArray() {
        final Object[] array = new Object[4];
        array[0] = this.first;
        array[1] = this.second;
        array[2] = this.third;
        array[3] = this.fourth;
        return array;
    }
Get the fourth value

@return Fourth value
cloud-core/src/main/java/org/incendo/cloud/type/tuple/Quartet.java