library/Rediska/Command/PopFromListBlocking.php
public function parseResponse($response)
    {
        if ($this->pushToKey !== null) {
            if (empty($response)) {
                return null;
            }

            if (!$this->isAtomic()) {
                $command = array('LPUSH',
                                 $this->_rediska->getOption('namespace') . $this->pushToKey,
                                 $response[1]);

                $exec = new Rediska_Connection_Exec($this->_storeConnection, $command);
                $exec->execute();

                $value = $response[1];
            } else {
                $value = $response;
            }

            return $this->_rediska->getSerializer()->unserialize($value);
        } else {
            if (!is_array($this->keyOrKeys) && !empty($response)) {
                $result = $this->_rediska->getSerializer()->unserialize($response[1]);
            } else {
                $result = Rediska_Command_Response_ListNameAndValue::factory($this->_rediska, $response);
            }

            return $result;
        }
    }
public function parseResponse($response)
    {
        if ($this->pushToKey !== null) {
            if (empty($response)) {
                return null;
            }

            if (!$this->isAtomic()) {
                $command = array('LPUSH',
                                 $this->_rediska->getOption('namespace') . $this->pushToKey,
                                 $response[1]);

                $exec = new Rediska_Connection_Exec($this->_storeConnection, $command);
                $exec->execute();

                $value = $response[1];
            } else {
                $value = $response;
            }

            return $this->_rediska->getSerializer()->unserialize($value);
        } else {
            if (!is_array($this->keyOrKeys) && !empty($response)) {
                $result = $this->_rediska->getSerializer()->unserialize($response[1]);
            } else {
                $result = Rediska_Command_Response_ListNameAndValue::factory($this->_rediska, $response);
            }

            return $result;
        }
    }
Parse response

@param string|array $response
@return mixed