Early return
It is possible to define a node at which the flow will return for synchronous endpoints. The rest of the flow will continue asynchronously.
This is useful when some webhooks need to return extremely fast but with more than just the UUID (define the first step as the early return), or when the expected return from the webhook does not require the full flow being computed.
Early return also affects streaming: when configured, the stream comes from the early return step rather than the last step of the flow.