EmitEventNode

Process scope: the subflow that undoes this node's effect if the instance is cancelled or fails later.

From each outlet the node type declares to the id of the next node; every declared outlet is mapped.

Named ZEN expressions evaluated before the node runs, typed against the node's input schema.

Writes fields of the node's output to declared slots (conversation) or vars (process).

Every node that waits has one, with a default per type.