Anyone successful in setting trulen_eval work with llama-2?

I am trying to get trulens_eval feedback work without openAI (using huggingface model ) off of the platform and with llama-2

when executing the following code,
with tru_recorder as recording:
llm_response = chain(prompt_input,


It still looks for openAI key as follows:
OpenAIError: 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
Anyone has procedure to work trulens_eval with Llama-2 models ?