class_docstr: Unit tests for the Azure Openai LLM class
code: def test_type_without_endpoint(self):
      with pytest.raises(APIKeyNotFoundError):
          AzureOpenAI(api_token="test")
  
file_path: pandas-ai/tests/llms/test_azure_openai.py
imports: import openai
  import pytest
  from pandasai.exceptions import APIKeyNotFoundError, MissingModelError
  from pandasai.llm import AzureOpenAI
label_desc: Use image node_id 2 for calling the TestAzureOpenAILLM obj's underlying member method code with example usage: obj.test_type_without_endpoint() without return types