[BUG] Requesting support for function tools in the evaluation script

[rahulmukherji1]

Expected Behavior

I'm trying to use the evals script to evaluate the performance of an agent that uses client-side function tools. This doesn't seem to be supported as of right now.

Current Behavior

The script throws errors, since the API needs an ACK from the function call.

Context (Environment)

I'm working on an agent that's meant to be deployed as a Prebuilt on the Vertex Console. Evaluations are necessary to test the agent's quality.