class HaikuGenerator(dspy.Signature):
    """
Generates a haiku about the latest news on the query.
Also create a simple file where you save the final summary.
    """
    query = dspy.InputField()
    summary = dspy.OutputField(desc="A summary of the latest news")
    haiku = dspy.OutputField()

program = dspy.ReAct(signature=HaikuGenerator,
                     tools=[fetch_recent_news],
                     max_iters=2)

program.set_lm(lm=dspy.LM("openai/gpt-4.1", temperature=0.7))
pred = program(query="OpenAI")