question about the callbackmanager->instrumentation migration - i'm working with RetrieverQueryEngine and CondensePlusContextChatEngine with a custom retriever and using LangFuse for observability. I am getting different trace spans between the 2, and looking at the code for each, they seem to be using different tracing constructs.
trying to figure out which one might be more "current" as regards the migration to the instrumentation package.
both use the same constructs (both instrumentation and callback manager)
Langfuse is currently implemented purely with callback manager afaik, but there is a some beta PR somewhere to migrate it (I can't remember if this actually released yet or not)
If theres broken traces, thats just a bug with langfuse is my guess
