fix(livekit_agents): skip empty LiveKit function tool spans#476

Abhijeet Prasad (AbhiPrasad) wants to merge 1 commit into

mainbraintrustdata/braintrust-sdk-python:mainfrom

BT-5477-livekit-agent-empty-function-toolbraintrustdata/braintrust-sdk-python:BT-5477-livekit-agent-empty-function-toolCopy head branch name to clipboard