[Bug]: OpenTelemetry does not work

[enniofilicicchia]

What happened?

I am self hosting Laminar, but OpenTelemetry logging does not even enter the method
Opentelemetry._handle_sucess in litellm.integrations.opentelemetry.py
or any of the logging methods.

litellm.callbacks = ["otel"]
os.environ["LMNR_PROJECT_API_KEY"] = (
"yyy"
)
os.environ["OTEL_EXPORTER"] = "otlp_grpc"
os.environ["OTEL_ENDPOINT"] = "http://mydomain.com:8000"
os.environ["OTEL_HEADERS"] = (
f"authorization=Bearer {os.environ["LMNR_PROJECT_API_KEY"]}"
)
os.environ["DEBUG_OTEL"] = "true"

I followed the debug run and no logging method of OpenTelemetry ever enters.
OpenTelemetry is well adopted, it would be cool to have a working reliable integration!

Relevant log output

Are you a ML Ops Team?

Yes

What LiteLLM version are you on ?

v1.59.3

Twitter / LinkedIn details

https://www.linkedin.com/in/ennio-filicicchia/