class_docstr: Unit tests for the openai LLM class
class_docstr_tok: ["Unit","tests","for","the","openai","LLM","class"]
code: def test_type_without_token(self):
      with pytest.raises(APIKeyNotFoundError):
          OpenAI().type
  
file_path: pandas-ai/tests/llms/test_openai.py
imports: import openai
  import pytest
  from pandasai.exceptions import APIKeyNotFoundError, UnsupportedModelError
  from pandasai.llm import OpenAI
  from pandasai.prompts import AbstractPrompt
label_desc: Use image node_id 2 for calling the TestOpenAILLM obj's underlying member method code with example usage: obj.test_type_without_token() without return types