/**
  * @return ExportJob
  */
 public function create() : ExportJob
 {
     $count = 0;
     while ($count < 30) {
         $key = Str::random(12);
         $existing = $this->findByKey($key);
         if (is_null($existing->id)) {
             $exportJob = new ExportJob();
             $exportJob->user()->associate($this->user);
             $exportJob->key = Str::random(12);
             $exportJob->status = 'export_status_never_started';
             $exportJob->save();
             // breaks the loop:
             return $exportJob;
         }
         $count++;
     }
     return new ExportJob();
 }