public function getIsSingleIterator()
	{
		/**
		 * @var XPath2NodeIterator $iter
		 */
		$iter = $this->CloneInstance();
		// $iter->named = "Original";
		$part1 = $iter->MoveNext();
		if ( $part1 )
		{
			$part2 = ! $iter->MoveNext();
			if ( $part2 ) return true;
		}

		return false;
	}