Description:
I encountered an issue while using the AI Coach XBlock in Sumac. When clicking the "Ask from coach" button, the request fails with the following error in the logs:

2025-02-20 21:17:58,842 ERROR 29 [ai_coach.ai_coach] [user 7] [ip 172.20.0.1] ai_coach.py:187 - 'dict' object has no attribute 'chat'

After debugging, I found that this happens because the OpenAI client fails to initialize, with the following error:

Client.__init__() got an unexpected keyword argument 'proxies'

It looks like this issue is caused by the httpx version 0.28, which removed the deprecated proxies argument
https://community.openai.com/t/error-with-openai-1-56-0-client-init-got-an-unexpected-keyword-argument-proxies/1040332/2
geekan/MetaGPT#1617

Temporary Solution:

As a workaround, I downgraded httpx to 0.27.2, and the XBlock is now working