nl_tokens: Returns a boolean for whether a site is in the process of a full sync .
pl_tokens: function isFullSyncing ( state , siteId ) { const syncStatus = getSyncStatus ( <mask> , siteId ) ; if ( ! syncStatus ) { return false ; } const isStarted = get ( syncStatus , 'started' ) ; const isFinished = get ( syncStatus , 'finished' ) ; return isStarted && ! isFinished ; }