How to use the getnative.utils.GetnativeException function in getnative

)

    if args.frame is None:
        args.frame = src.num_frames // 3
    elif args.frame < 0:
        args.frame = src.num_frames // -args.frame
    elif args.frame > src.num_frames - 1:
        raise GetnativeException(f"Last frame is {src.num_frames - 1}, but you want {args.frame}")

    if args.ar == 0:
        args.ar = src.width / src.height

    if args.min_h >= src.height:
        raise GetnativeException(f"Input image {src.height} is smaller min_h {args.min_h}")
    elif args.min_h >= args.max_h:
        raise GetnativeException(f"min_h {args.min_h} > max_h {args.max_h}? Not processable")
    elif args.max_h > src.height:
        print(f"The image height is {src.height}, going higher is stupid! New max_h {src.height}")
        args.max_h = src.height

    getn = GetNative(src, scaler, args.ar, args.min_h, args.max_h, args.frame, args.mask_out, args.plot_scaling,
                     args.plot_format, args.show_plot, args.no_save, args.steps, output_dir)
    try:
        loop = asyncio.get_event_loop()
        best_value, plot, resolutions = loop.run_until_complete(getn.run())
    except ValueError as err:
        raise GetnativeException(f"Error in getnative: {err}")

    gc.collect()
    print(
        f"\n{scaler} AR: {args.ar:.2f} Steps: {args.steps}\n"
        f"{best_value}\n"

if not os.access(output_dir, os.W_OK):
        raise PermissionError(f"Missing write permissions: {output_dir}")
    output_dir = output_dir.joinpath("results")

    if (args.img or args.mask_out) and imwri is None:
        raise GetnativeException("imwri not found.")

    if scaler is None:
        scaler = _DefineScaler(args.kernel, b=args.b, c=args.c, taps=args.taps)
    else:
        scaler = scaler

    if scaler.plugin is None:
        if "toggaf.asi.xe" in core.get_plugins():
            print("Error: descale_getnative support ended, pls use https://github.com/Irrational-Encoding-Wizardry/vapoursynth-descale")
        raise GetnativeException('No descale found!')

    if args.steps != 1 and first_time:
        print(
            "Warning for -steps/--stepping: "
            "If you are not completely sure what this parameter does, use the default step size.\n"
        )

    if args.frame is None:
        args.frame = src.num_frames // 3
    elif args.frame < 0:
        args.frame = src.num_frames // -args.frame
    elif args.frame > src.num_frames - 1:
        raise GetnativeException(f"Last frame is {src.num_frames - 1}, but you want {args.frame}")

    if args.ar == 0:
        args.ar = src.width / src.height

if ext in {".py", ".pyw", ".vpy"}:
        print("Using custom VapourSynth script as a source. This may cause garbage results. Only do this if you know what you are doing.")
        return vpy_source_filter
    source_filter = get_attr(core, 'ffms2.Source')
    if source_filter:
        print("Using ffms2 as source filter")
        return lambda input_file: source_filter(input_file, alpha=False)
    source_filter = get_attr(core, 'lsmas.LWLibavSource')
    if source_filter:
        print("Using lsmas.LWLibavSource as source filter")
        return source_filter
    source_filter = get_attr(core, 'lsmas.LSMASHVideoSource')
    if source_filter:
        print("Using lsmas.LSMASHVideoSource as source filter")
        return source_filter
    raise GetnativeException("No source filter found.")

:param args: List of all arguments for argparse or Namespace object from argparse
    :param src: VideoNode from vapoursynth
    :param scaler: DefineScaler object or None
    :param first_time: prevents posting warnings multiple times
    :return: best resolutions list and plot matplotlib.pyplot
    """
    if type(args) == list:
        args = parser.parse_args(args)

    output_dir = Path(args.dir).resolve()
    if not os.access(output_dir, os.W_OK):
        raise PermissionError(f"Missing write permissions: {output_dir}")
    output_dir = output_dir.joinpath("results")

    if (args.img or args.mask_out) and imwri is None:
        raise GetnativeException("imwri not found.")

    if scaler is None:
        scaler = _DefineScaler(args.kernel, b=args.b, c=args.c, taps=args.taps)
    else:
        scaler = scaler

    if scaler.plugin is None:
        if "toggaf.asi.xe" in core.get_plugins():
            print("Error: descale_getnative support ended, pls use https://github.com/Irrational-Encoding-Wizardry/vapoursynth-descale")
        raise GetnativeException('No descale found!')

    if args.steps != 1 and first_time:
        print(
            "Warning for -steps/--stepping: "
            "If you are not completely sure what this parameter does, use the default step size.\n"
        )

def check_input(self):
        if self.descaler is None and self.kernel == "spline64":
            raise GetnativeException(f'descale: spline64 support is missing, update descale (>r3).')
        elif self.descaler is None:
            raise GetnativeException(f'descale: {self.kernel} is not a supported kernel.')

def check_input(self):
        if self.descaler is None and self.kernel == "spline64":
            raise GetnativeException(f'descale: spline64 support is missing, update descale (>r3).')
        elif self.descaler is None:
            raise GetnativeException(f'descale: {self.kernel} is not a supported kernel.')