def shadow(fontid: int, level: int, r: float, g: float, b: float, a: float):
    """Shadow options, enable/disable using SHADOW . 

    :param fontid: The id of the typeface as returned by blf.load(), for default font use 0. 
    :type fontid: int
    :param level: The blur level, can be 3, 5 or 0. 
    :type level: int
    :param r: Shadow color (red channel 0.0 - 1.0). 
    :type r: float
    :param g: Shadow color (green channel 0.0 - 1.0). 
    :type g: float
    :param b: Shadow color (blue channel 0.0 - 1.0). 
    :type b: float
    :param a: Shadow color (alpha channel 0.0 - 1.0). 
    :type a: float
    """
    pass
