src/Connection/Cluster/RedisCluster.php
protected function move(NodeConnectionInterface $connection, $slot)
    {
        $this->pool[(string) $connection] = $connection;
        $this->slots[(int) $slot] = $connection;
        $this->slotmap[(int) $slot] = $connection;
    }
protected function move(NodeConnectionInterface $connection, $slot)
    {
        $this->pool[(string) $connection] = $connection;
        $this->slots[(int) $slot] = $connection;
        $this->slotmap[(int) $slot] = $connection;
    }
Permanently associates the connection instance to a new slot.
The connection is added to the connections pool if not yet included.

@param NodeConnectionInterface $connection Connection instance.
@param int                     $slot       Target slot index.