def supported_media_types(self):
        """The list of media types that this backend supports.

        For example, CVAT supports ``["image", "video"]``.
        """
        raise NotImplementedError(
            "subclass must implement supported_media_types"
        )
The list of media types that this backend supports.

        For example, CVAT supports ``["image", "video"]``.
        
fiftyone/utils/annotations.py