/**
  * Execute the console command.
  */
 public function handle()
 {
     VkRequest::all()->groupBy('token')->each(function (Collection $requests, $token) {
         foreach ($requests->chunk(self::NUMBER_OF_REQUESTS) as $chunkRequests) {
             $this->dispatch(new SendBatch($chunkRequests, $token));
         }
     });
 }