code: def __str__(self):
      return self.content
  
imports: import os
  import re
  from pathlib import Path
  from typing import Any, Dict, Literal, Optional, Type, Union
  import requests
  import yaml
  from huggingface_hub.file_download import hf_hub_download
  from huggingface_hub.hf_api import upload_file
  from huggingface_hub.repocard_data import CardData, DatasetCardData, EvalResult, ModelCardData, SpaceCardData, eval_results_to_model_index, model_index_to_eval_results
  from huggingface_hub.utils import get_session, is_jinja_available, yaml_dump
  from .constants import REPOCARD_NAME
  from .utils import EntryNotFoundError, SoftTemporaryDirectory, logging, validate_hf_hub_args
label_desc: Use image node_id 4 for calling the RepoCard obj's underlying member method code with example usage: obj.__str__() and returns: self