Agents StreamingFunc is ignored

[pkrauss-prot]

package version: github.com/tmc/langchaingo v0.1.12

Regardless of using the chains run or call the streamingFunc defined is ignored.

agent := agents.NewConversationalAgent(llm,
		agentTools,
		agents.WithMaxIterations(3),
	)
executor := agents.NewExecutor(agent)

question := "what is the answer for 1000092 / 23999 * 1000000? break it down into steps"
answer, err := chains.Run(context.Background(), executor, question, chains.WithStreamingFunc(func(ctx context.Context, chunk []byte) error {
	fmt.Printf("streaming: %s\n", string(chunk))
	return nil
}))