incoming
An incoming Server-Sent Events (SSE) flow.
Each TypedServerSentEvent can contain following fields:
TypedServerSentEvent.data data field of the event. It can be deserialized into an object of desired type using the deserialize function
TypedServerSentEvent.event string identifying the type of event.
TypedServerSentEvent.id event ID.
TypedServerSentEvent.retry reconnection time, in milliseconds to wait before reconnecting.
TypedServerSentEvent.comments comment lines starting with a ':' character.