nl_tokens: List the applied changes since the last sync loop for the given client
pl_tokens: function listAppliedChangeSinceLastSync ( datasetId , lastSyncEndTime , clientInfo , cb ) { syncStorage . listUpdates ( datasetId , { <mask> : SYNC_UPDATE_TYPES . APPLIED , cuid : clientInfo . cuid , timestamp : { $gt : lastSyncEndTime } } , null , cb ) ; }