docs: def count_chron_variables(temp_sheet):
      """
      Count the number of chron variables
      :param obj temp_sheet:
      :return int: variable count
      """
      total_count = 0
      start_row = traverse_to_chron_var(temp_sheet)
      while temp_sheet.cell_value(start_row, 0) != '':
          total_count += 1
          start_row += 1
      return total_count