code: def _get_valid_model_table(self, ros):
          
          # pylint: disable=no-self-use
  
          new_table = []
          if bool(ros):
              length_table = len(ros)
              for row_index in range(0, length_table):
                  cells_added = 0
                  original_row = [] + ros[row_index]
                  if len(new_table) <= row_index:
                      new_table.append([])
                  length_row = len(original_row)
                  for cell_index in range(0, length_row):
                      cell = original_row[cell_index]
                      new_cell_index = cell_index + cells_added
                      new_row = new_table[row_index]
                      while True:
                          if len(new_row) <= new_cell_index:
                              new_row.append(None)
                              break
                          elif new_row[new_cell_index] is None:
                              break
                          else:
                              cells_added += 1
                              new_cell_index = cell_index + cells_added
                      new_row[new_cell_index] = cell
                      if cell.has_attribute('rowspan'):
                          rowspan = int(cell.get_attribute('rowspan'))
                          if rowspan > 1:
                              for rowspan_index in range(1, rowspan):
                                  new_row_index = row_index + rowspan_index
                                  if len(new_table) <= new_row_index:
                                      new_table.append([])
                                  while (
                                      len(new_table[new_row_index])
                                      < new_cell_index
                                  ):
                                      new_table[new_row_index].append(None)
                                  new_table[new_row_index].append(cell)
          return new_table
docs: Returns a list that represents the table with the rowspans.
  
          :param ros: The list that represents the table without the rowspans.
          :type ros: list(list(hatemile.util.html.htmldomelement.HTMLDOMElement))
          :return The list that represents the table with the rowspans.
          :rtype: list(list(hatemile.util.html.htmldomelement.HTMLDOMElement))