public function getClientFor($connectionAlias) { if (!$this->_connection instanceof ConnectionCluster) { throw new ClientException('This method is supported only when the client is connected to a cluster of connections'); } $connection = $this->_connection->getConnectionById($connectionAlias); if ($connection === null) { throw new \InvalidArgumentException("Invalid connection alias: '{$connectionAlias}'"); } $newClient = new Client(); $newClient->setupClient($this->_options); $newClient->setConnection($this->getConnection($connectionAlias)); return $newClient; }