library/Rediska/Command/Set.php
public function parseResponses($responses)
    {
        if ($this->_multiple) {
            if (!empty($responses)) {
                foreach($responses as $response) {
                    if (!$response) {
                        return false;
                    }
                }
                return true;
            } else {
                return false;
            }
        } else {
            return (boolean)$responses[0];
        }
    }
public function parseResponses($responses)
    {
        if ($this->_multiple) {
            if (!empty($responses)) {
                foreach($responses as $response) {
                    if (!$response) {
                        return false;
                    }
                }
                return true;
            } else {
                return false;
            }
        } else {
            return (boolean)$responses[0];
        }
    }
Parse responses

@param array $responses
@return boolean