Device about to sleep
Device about to sleep power.sleep.imminent
Key fields
No event-specific extension fields; outputData is often {}.
Notes
Standard pushes use capabilityEvent and catalog msgType; legacy models may use other msg_type values—see device.capability.list and message list/search.
Query/receive uses capability-row codes: sub-account Config, shared Config,config (see Permission codes).
Subscribe to capabilityEvent in setMessageCallback. msgType is power.sleep.imminent. Device-level; outputData is often {}. Sample: Capability reference.
