code: def in_list(list_to_search, string_to_search):
          
  
          if (bool(list_to_search)) and (bool(string_to_search)):
              elements = re.split('[ \n\t\r]+', list_to_search)
              for element in elements:
                  if element == string_to_search:
                      return True
          return False
docs: Verify if the list contains the item.
  
          :param list_to_search: The list.
          :type list_to_search: str
          :param string_to_search: The value of item.
          :type string_to_search: str
          :return: True if the list contains the item or False is not contains.
          :rtype: bool