def line_init(xo: int, yo: int, xd: int, yd: int) -> None:
    """Initilize a line whose points will be returned by `line_step`.

    This function does not return anything on its own.

    Does not include the origin point.

    Args:
        xo (int): X starting point.
        yo (int): Y starting point.
        xd (int): X destination point.
        yd (int): Y destination point.

    .. deprecated:: 2.0
       Use `line_iter` instead.
    """
    lib.TCOD_line_init(xo, yo, xd, yd)