def get_max_len(lis: list) -> tuple:
    """Returns max length of str objects in a list and its index.

    Parameters
    ----------
    lis : list
        A list containing two str objects.

    Returns
    -------
    :rtype: tuple
        A tuple containing (in this order) an integer representing the
        length of a str object and an integer representing the index
        of that str object.
    """

    maxi = 0
    count = -1

    for elem in lis:
        elem_len = len(elem)
        if elem_len > maxi:
            maxi = elem_len
            count += 1
    return (maxi, count)