def ceil(x) -> int:⏎
    """⏎
    Return the ceiling of x as an Integral.⏎
⏎
    :param x: the number⏎
    :return: the smallest integer >= x.⏎
⏎
    >>> import math⏎
    >>> all(ceil(n) == math.ceil(n) for n in (1, -1, 0, -0, 1.1, -1.1, 1.0, -1.0, 1_000_000_000))⏎
    True⏎
    """⏎
    return (⏎
        x if isinstance(x, int) or x - int(x) == 0 else int(x + 1) if x > 0 else int(x)⏎
    )⏎
⏎
⏎
if __name__ == "__main__":⏎
    import doctest⏎
⏎
    doctest.testmod()⏎