protected function _formatRow(array $row) {
        $out = '';
        foreach ($row as $key => $value) {
            if (is_array($value)) {
                // This is the case with hasMany and hasAndBelongsToMany related
                // rowsets.
                $value = $this->_formatRelatedRowset($value);
            }
            $out .= "$key: $value\n";
        }
        return $out;
    }