ackWait property
AckWait is how long the broker waits for an ack before redelivering, e.g. "30s" (default).
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? ackWait;