utils.py & .env.example not included

[scottpatrickwright]

The utils.py dependency is missing.

[FengD]

The utils.py dependency is missing.

Hi,
I followed the course of LlamaIndex and met the same problems.
You could follow this link of the trulens. https://www.trulens.org/trulens_eval/getting_started/core_concepts/1_rag_prototype/

I put my code here. And works at my side.

import numpy as np
from trulens_eval import Tru, Feedback, TruLlama, OpenAI as fOpenAI

provider = OpenAI()
context = TruLlama.select_context()

answer_relevance = (
    Feedback(provider.relevance_with_cot_reasons, name="Answer Relevance")
    .on_input_output()
)

context_relevance = (
    Feedback(provider.context_relevance_with_cot_reasons, name = "Context Relevance")
    .on_input()
    .on(context)
    .aggregate(np.mean)
)

f_groundedness = (
    Feedback(provider.groundedness_measure_with_cot_reasons, name="Groundedness")
        .on(context.collect())
        .on_output()
)


def get_prebuilt_trulens_recorder(query_engine, app_id):
    tru_recorder = TruLlama(query_engine,
        app_id='Direct Query Engine',
        feedbacks=[answer_relevance, context_relevance, f_groundedness])

    return tru_recorder

tru_recorder = get_prebuilt_trulens_recorder(query_engine, app_id="Direct Query Engine")