def all_types(
      x: int,
      y: str,
      z: Sequence,
      w: Mapping[str, int],
      d: Dict[str, int],
      s: Set[int],
      t: Tuple[int, str],
      l: List[int],  # noqa: E741
      o: Union[int, None],
    ) -> Union[Mapping[str, int], str, None]:
      """
      A function with all types.
      Args:
          x (integer): The first number
          y (string): The second number
          z (array): The third number
          w (object): The fourth number
          d (object): The fifth number
          s (array): The sixth number
          t (array): The seventh number
          l (array): The eighth number
          o (integer | None): The ninth number
      """

      A function with all types.
      Args:
          x (integer): The first number
          y (string): The second number
          z (array): The third number
          w (object): The fourth number
          d (object): The fifth number
          s (array): The sixth number
          t (array): The seventh number
          l (array): The eighth number
          o (integer | None): The ninth number
      
tests/test_utils.py