A function to load a previously saved ImageClassifier
        instance.

def _load_version(cls, state, version):
        """
        A function to load a previously saved ImageClassifier
        instance.
        """
        _tkutl._model_version_check(version, cls._PYTHON_IMAGE_CLASSIFIER_VERSION)
        from turicreate.toolkits.classifier.logistic_classifier import LogisticClassifier
        state['classifier'] = LogisticClassifier(state['classifier'])
        state['classes'] = state['classifier'].classes

        # Correct models saved with a previous typo
        if state['model'] == "VisionFeaturePrint_Screen":
            state['model'] = "VisionFeaturePrint_Scene"
 
        # Load pre-trained model & feature extractor
        model_name = state['model']
        if model_name == "VisionFeaturePrint_Scene" and _mac_ver() < (10,14):
            raise ToolkitError("Can not load model on this operating system. This model uses VisionFeaturePrint_Scene, "
                               "which is only supported on macOS 10.14 and higher.")
        state['feature_extractor'] = _image_feature_extractor._create_feature_extractor(model_name)
        state['input_image_shape'] = tuple([int(i) for i in state['input_image_shape']])
        return ImageClassifier(state)