public function addNodeAssignment($mainNodeID, $objectID, $nodeAssignmentIDList, $isMoved = false)
 {
     $this->recommendationClient->updateContent($objectID);
     if (method_exists($this->legacySearchEngine, 'addNodeAssignment')) {
         $this->legacySearchEngine->addNodeAssignment($mainNodeID, $objectID, $nodeAssignmentIDList, $isMoved);
     }
 }
 public function swapNode($nodeID, $selectedNodeID, $nodeIdList)
 {
     if (method_exists($this->legacySearchEngine, 'swapNode')) {
         return $this->legacySearchEngine->swapNode($nodeID, $selectedNodeID, $nodeIdList);
     }
 }