Runner 与执行

sessionService := session.InMemoryService()
_, err := sessionService.Create(ctx, &session.CreateRequest{
	AppName: "demo",
	UserID: "user-1",
	SessionID: "session-1",
})
if err != nil {
	return err
}

r, err := runner.New(runner.Config{
	AppName:        "demo",
	Agent:          a,
	SessionService: sessionService,
})
if err != nil {
	return err
}

input := genai.NewContentFromText("hello", "user")
for event, err := range r.Run(ctx, "user-1", "session-1", input, agent.RunConfig{}) {
	if err != nil {
		return err
	}
	// handle event
}

var chunks []string
for event, err := range r.Run(ctx, userID, sessionID, input, agent.RunConfig{}) {
	if err != nil {
		return err
	}
	if event.Content == nil || event.Partial {
		continue
	}
	for _, part := range event.Content.Parts {
		chunks = append(chunks, part.Text)
	}
}
answer := strings.Join(chunks, "")