def convert(model, feature_names, target):
    """Convert a Nu-Support Vector Classification (NuSVC) model to the protobuf spec.
    Parameters
    ----------
    model: NuSVC
        A trained NuSVC encoder model.

    feature_names: [str], optional (default=None)
        Name of the input columns.

    target: str, optional (default=None)
        Name of the output column.

    Returns
    -------
    model_spec: An object of type Model_pb.
        Protobuf representation of the model
    """

    if not (_HAS_SKLEARN):
        raise RuntimeError(
            "scikit-learn not found. scikit-learn conversion API is disabled."
        )

    _sklearn_util.check_expected_type(model, _NuSVC)
    return _SVC.convert(model, feature_names, target)
Convert a Nu-Support Vector Classification (NuSVC) model to the protobuf spec.
    Parameters
    ----------
    model: NuSVC
        A trained NuSVC encoder model.

    feature_names: [str], optional (default=None)
        Name of the input columns.

    target: str, optional (default=None)
        Name of the output column.

    Returns
    -------
    model_spec: An object of type Model_pb.
        Protobuf representation of the model
    
coremltools/converters/sklearn/_NuSVC.py