Errors or difficulty using custom models with tools like githubsearch

CrewAI Community Support
1

I am having difficulty to define custom models for tools.
example:

  @agent
    def researcher(self) -> Agent:        
        return Agent(
            config=self.agents_config['researcher'],
            verbose=True,
            tool=GithubSearchTool(
                github_repo='https://github.com/myrepodir/reponame',
                gh_token='github_pat_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,
                content_types=['code', 'issue', 'repo', 'pr'],
                config=dict(
                    llm=dict(
                        provider="ollama", 
                        config=dict(
                            model="codeqwen",
                            # temperature=0.5,
                            # top_p=1,
                            # stream=true,
                        ),
                    ),
                    embedder=dict(
                        provider="ollama", 
                        config=dict(
                            model="nomic-embed-text"
           
                        ),
                    ),
                )
                
            ),
            llm=LLM(model="gpt-4o", api_version="2025-01-01-preview")
        )

If I do not have the OPENAPI key it would not run, If I have openAPI key it works but doesn’t seem to use the custom embedding model. Additionally I can’t use any of the azure openai embedding models to configure here. An example on how to use Azure openai embedding models would be very helpful.
Error message if I do not have openAPI key in my env variable.

ERROR:root:LiteLLM call failed: litellm.AuthenticationError: AuthenticationError: OpenAIException - The api_key client option must be set either by passing api_key to the client or by setting the OPENAI_API_KEY environment variable
 Error during LLM call: litellm.AuthenticationError: AuthenticationError: OpenAIException - The api_key client option must be set either by passing api_key to the client or by setting the OPENAI_API_KEY environment variable
 An unknown error occurred. Please check the details below.
 Error details: litellm.AuthenticationError: AuthenticationError: OpenAIException - The api_key client option must be set either by passing api_key to the client or by setting the OPENAI_API_KEY environment variable