For HELM testing, is an API, like togetherApiKey, necessary?

[DOG-wooooof]

I followed the instructions in the section Evaluation on tasks from HELM framework(https://github.com/FMInference/H2O/blob/main/h2o_hf/README.md).

However, when I reached Step 3: Evaluate the performance of generated text (refer to helm/command/eval.sh), I encountered the following error message:

        Traceback (most recent call last):
  File "/root/miniconda3/envs/myKV4/lib/python3.8/site-packages/retrying.py", line 251, in call
    attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
  File "/root/miniconda3/envs/myKV4/lib/python3.8/site-packages/helm/proxy/clients/auto_client.py", line 170, in make_request_with_retry
    return client.make_request(request)
  File "/root/miniconda3/envs/myKV4/lib/python3.8/site-packages/helm/proxy/clients/together_client.py", line 138, in make_request
    raise TogetherClientError("togetherApiKey not set in credentials.conf")
helm.proxy.clients.together_client.TogetherClientError: togetherApiKey not set in credentials.conf

        Request failed. Retrying (attempt #2) in 0 seconds... (See above for error details)
        
        Traceback (most recent call last):
  File "/root/miniconda3/envs/myKV4/lib/python3.8/site-packages/retrying.py", line 251, in call
    attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
  File "/root/miniconda3/envs/myKV4/lib/python3.8/site-packages/helm/proxy/clients/auto_client.py", line 170, in make_request_with_retry
    return client.make_request(request)
  File "/root/miniconda3/envs/myKV4/lib/python3.8/site-packages/helm/proxy/clients/together_client.py", line 138, in make_request
    raise TogetherClientError("togetherApiKey not set in credentials.conf")
helm.proxy.clients.together_client.TogetherClientError: togetherApiKey not set in credentials.conf

        Request failed. Retrying (attempt #3) in 10 seconds... (See above for error details)
    ......

I've read the docs, it seems an API key is required. I’m confused, though—aren’t we supposed to be doing an offline evaluation? Why do we need to connect to certain websites?
please advise If there is any way to fix it, thx!