@SuppressWarnings("unchecked")
    default Optional<Object> get(int index) {
        if (index == 0) {
            return (Optional<Object>)get0();
        } else {
            throw new IndexOutOfBoundsException(String.format("Index %d is outside bounds of tuple of degree %s", index, degree()));
        }
    }
Sets the 0th element in this tuple.

@param t0 the new value for the 0th element
common-parent/tuple/src/main/java/com/speedment/common/tuple/mutable/MutableTuple1.java