protected function _renderCells($line, $useCount = false)
    {
        $i = 0;
        $cellsOut = [];
        foreach ($line as $cell) {
            $cellOptions = [];

            if (is_array($cell)) {
                $cellOptions = $cell[1];
                $cell = $cell[0];
            }

            if ($useCount) {
                $i += 1;
                if (isset($cellOptions['class'])) {
                    $cellOptions['class'] .= ' column-' . $i;
                } else {
                    $cellOptions['class'] = 'column-' . $i;
                }
            }

            $cellsOut[] = $this->tableCell($cell, $cellOptions);
        }

        return $cellsOut;
    }