code: def describe(self, attribute: Optional[str] = None) -> pd.DataFrame:
      args = self.model_storage.json_get("args")
      if "api_key" in args:
          del args["api_key"]
  
      if attribute == "args":
          return pd.DataFrame(args.items(), columns=["key", "value"])
      elif attribute == "metadata":
          # we opt for the URL because some models require completing a form to access their artifacts
          model_name = args.get("model_name", self.default_model)
          model_card_url = "https://huggingface.co/" + model_name
          return pd.DataFrame(
              {
                  "model_name": [model_name],
                  "model_card": [model_card_url],
              }
          )
      else:
          tables = ["args", "metadata"]
          return pd.DataFrame(tables, columns=["tables"])
  
imports: import os
  import openai
  import json
  import contextlib
  from typing import Optional, Dict
  import pandas
  from mindsdb.integrations.handlers.openai_handler.openai_handler import OpenAIHandler
  from mindsdb.integrations.handlers.openai_handler.constants import OPENAI_API_BASE
  from mindsdb.integrations.utilities.handler_utils import get_api_key
  from mindsdb.utilities import log
label_desc: Use image node_id 6 for calling the AnyscaleEndpointsHandler obj's underlying member method code with example usage: obj.describe(attribute) and returns: pd, pd, pd