def prepare_data(self) -> None:
        """This method already assumes you have imagenet2012 downloaded. It validates the data using the meta.bin.
        .. warning:: Please download imagenet on your own first.
        """
        if not self.use_archive_dataset:
            self._verify_splits(self.data_dir, "train")
            self._verify_splits(self.data_dir, "val")
        else:
            if not self.data_dir.is_file():
                raise FileNotFoundError(f"""Archive file {str(self.data_dir)} not found.""")
This method already assumes you have imagenet2012 downloaded. It validates the data using the meta.bin.
        .. warning:: Please download imagenet on your own first.
        
analyze/convnexts4nd/src/dataloaders/vision.py