from prefect import flow


@flow(log_prints=True)
def hello_world(name: str = "world", goodbye: bool = False):
    print(f"Hello {name} from Prefect! :hugging_face:")

    if goodbye:
        print(f"Goodbye {name}!")


if __name__ == "__main__":
    hello_world.serve(
        name="my-first-deployment",
        tags=["onboarding"],
        parameters={"goodbye": True},
        interval=60,
    )

prefect version

Version:             2.82

flow.serve

2.8.2

2.13.x