StructuredTableCellDataSource#cellForRowAt.swift

func configureCell(_ cell: UITableViewCell, withValue value: Any) {}
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final func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let row = self.sections[indexPath.section].rows[indexPath.row]
    let cell = tableView.dequeueReusableCell(withIdentifier: row.reusableId, for: indexPath)
    self.configureCell(cell, withValue: row.value) // 
    return cell
}