class_docstr: Unit tests for the GooglePalm LLM class
code: def test_type_without_token(self):
      with pytest.raises(APIKeyNotFoundError):
          GooglePalm(api_key="")
  
file_path: pandas-ai/tests/llms/test_google_palm.py
imports: import re
  import pytest
  from google import generativeai
  from pandasai.exceptions import APIKeyNotFoundError
  from pandasai.llm import GooglePalm
  from pandasai.prompts import AbstractPrompt
label_desc: Use image node_id 2 for calling the TestGooglePalm obj's underlying member method code with example usage: obj.test_type_without_token() without return types