The event payload. Extensions of this interface should specify a more precise type.
OptionalidID of the entity the event is reporting on. Undefined when type is server.
Examples:
user eventsshard0/W0N0, W0N0, etc) for room eventsWhen non-empty, indicates that the event concerns a property or aspect of type.
Examples:
/resources for user-type events indicates an update to resource counts
WebSocket event for code changes.
When subscribed, the server sends an event with the full updated code base every time the code is changed.