How to provide function id and function response to runner.run_async() for a long running function tool

[MahorShekhar]

How to provide function id and function response to runner.run_async() for a long running function tool.

I have the a case where some function tool response will come later on. Right now I was handling with a kind of hack where I was registering event as author=system and role=model. I don't think this is the right way.

def handle_trigger(session: Session, trigger:str, form_data:dict = None) -> dict:

state_delta = TRIGGER_MESSAGES[trigger]["state_delta"]

system_event = Event(
    author="system",
    invocation_id=str(uuid.uuid4()),
    actions=EventActions(state_delta=state_delta),
    content=Content(role='model', parts=[Part(text=TRIGGER_MESSAGES[trigger]["event_content"])])
)
event = session_service.append_event(session, system_event)

return {"event": event}

Now coming to solution suggested by @boyangsvl here on similar conversation, could you guys please help me with runner.run_async(), how can we provide function id and function response. Is there any example in cookbook ?

[MahorShekhar]

@boyangsvl @hangfei @Jacksunwei could you guys please assist me with this.