code: def all(cls):
          
          result = []
          for name in dir(cls):
              if not name.isupper():
                  continue
              value = getattr(cls, name)
              if isinstance(value, ItemsList):
                  result.append(value[0])
              else:
                  result.append(value)
          return result
docs: Get all consts
          :return: list