Troubleshooting ModuleNotFoundError with Phoenix Library

Hi Phoenix support! I'm encountering an issue that's very similar to this thread back in June. I opened up an issue, but I was hoping someone could help me with this. I'm using Pants which creates a virtual environment/hermetic sandbox based on a requirements.txt file when it is run. When I try to use anything from phoenix I'm getting ModuleNotFoundError: no module named 'phoenix.evals' which is imported in functions.py. I found that the evals directory is not present in the distro for arize-phoenix library nor is it in this directory. Am I missing something here?