Request type for the ReportStateAndNotification call. It may include states, notifications, home_traits, home_events, or any combination thereof. Smart Home Device Traits (SHDT) states and notifications are defined per device_id (for example, "123" and "456" in the following example). Google Home Traits home_traits and home_events are lists of updates or events, each associated with a device_id (for example, "789" in the following example). Example: json { "requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf", "agentUserId": "1234", "payload": { "devices": { "states": { "123": { "on": true }, "456": { "on": true, "brightness": 10 }, }, "homeTraits": [ { "deviceId": "789", "components": [ { "componentId": "main", "traitData": [ { "trait": { "@type": "type.googleapis.com/home.graph.v1.OnOffTrait", "onOff": true } } ] } ] } ], "homeEvents": [ { "deviceId": "789", "events": [ { "componentId": "main", "events": [ { "eventId": "event-123", "eventTime": "2026-01-01T00:00:00Z", "event": { "@type": "type.googleapis.com/home.graph.v1.DoorbellPressTrait.DoorbellPressedEvent" } } ] } ] } ] } } }