Predis\Cluster\StrategyInterface::getSlot PHP Метод

    public function getSlot(CommandInterface $command);

 /**
  * {@inheritdoc}
  */
 public function getConnectionByCommand(CommandInterface $command)
 {
     $slot = $this->strategy->getSlot($command);
     if (!isset($slot)) {
         throw new NotSupportedException("Cannot use '{$command->getId()}' over clusters of connections.");
     }
     $node = $this->distributor->getBySlot($slot);
     return $node;
 }