docs: public Array<T> append(final Array<T> array) {
  		final Array<T> appended = newInstance(length() + array.length());
  		for (int i = 0; i < _length; ++i) {
  			appended.set(i, get(i));
  		}
  		for (int i = 0; i < array._length; ++i) {
  			appended.set(i + _length, array.get(i));
  		}
  
  		return appended;
  	}