def METHOD_NAME(self) -> None:
    # process and save as torch files
    print(f"# Caching data {self.data_file}")
    dataset = (
        read_image_file(self.data_dir, self.image_ext, self.lens[self.name]),
        read_info_file(self.data_dir, self.info_file),
        read_matches_files(self.data_dir, self.matches_files),
    )
    with open(self.data_file, "wb") as f:
        torch.save(dataset, f)