def METHOD_NAME(pet_id):  # noqa: E501
    """Find pet by ID
    Returns a single pet # noqa: E501
    :param pet_id: ID of pet to return
    :type pet_id: int
    :rtype: Union[Pet, Tuple[Pet, int], Tuple[Pet, int, Dict[str, str]]
    """
    return 'do some magic!'