code: def increase_in_list(list_to_increase, string_to_increase):
          
  
          if (bool(list_to_increase)) and (bool(string_to_increase)):
              if CommonFunctions.in_list(list_to_increase, string_to_increase):
                  return list_to_increase
              return list_to_increase + ' ' + string_to_increase
          elif bool(list_to_increase):
              return list_to_increase
          return string_to_increase
docs: Increase a item in a HTML list.
  
          :param list_to_increase: The list.
          :type list_to_increase: str
          :param string_to_increase: The value of item.
          :type string_to_increase: str
          :return: The HTML list with the item added, if the item not was
                   contained in list.
          :rtype: str