Optional
bodyOptional data passed along with the intent.
Capability that fulfills the intent.
Additional information attached to this message.
Header values must be JSON serializable. If no headers are set, the Map
is empty.
Intent that represents this message.
Optional
retainIndicates whether this message is retained on the broker for late subscribers.
Represents an intent sent by an application.
The intent is transported to applications that provide a fulfilling capability visible to the sending application.