protected function extractBinaries(&$attributes)
    {
        // If attributes contains binary field
        // extract binary fields to new array
        $binaries = [];
        if ($this->checkBinary($attributes) && $this->getConnection() instanceof Oci8Connection) {
            foreach ($attributes as $key => $value) {
                if (in_array($key, $this->binaries)) {
                    $binaries[$key] = $value;
                    unset($attributes[$key]);
                }
            }
        }

        return $this->binaryFields = $binaries;
    }