nl_tokens: https : // dom . spec . whatwg . org / #queue - a - tree - mutation - record
pl_tokens: function queueTreeMutationRecord ( <mask> , addedNodes , removedNodes , previousSibling , nextSibling ) { queueMutationRecord ( MUTATION_TYPE . CHILD_LIST , target , null , null , null , addedNodes , removedNodes , previousSibling , nextSibling ) ; }