struct EventTrack

A track of detected events within a camera session.
- `


  ### [startTimestampMillis](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV20startTimestampMilliss6UInt64Vvp)


  ` The start timestamp of the event track in milliseconds since the Unix epoch.

  #### Declaration

  Swift

      let startTimestampMillis: UInt64

- `


  ### [endTimestampMillis](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV18endTimestampMilliss6UInt64Vvp)


  ` The end timestamp of the event track in milliseconds since the Unix epoch.

  #### Declaration

  Swift

      let endTimestampMillis: UInt64

- `


  ### [eventTypes](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV05eventC0SayAE0G4TypeOGvp)


  ` The event types detected in this track.

  #### Declaration

  Swift

      let eventTypes: [https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google.html.https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait.html.https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventType.html]

- `


  ### [zones](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV5zonesSayAE4ZoneVGvp)


  ` The zones where the event was detected.

  #### Declaration

  Swift

      let zones: [https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google.html.https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait.html.https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/Zone.html]

- `


  ### [face](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV4faceAE4FaceVvp)


  ` The face detected in this track.

  #### Declaration

  Swift

      let face: https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google.html.https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait.html.https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/Face.html

- `


  ### [init(decoder:)](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV7decoderAG0aB3SDK0F7DecoderV_tKcfc)


  ` Creates a new Struct instance using data read from the given `TraitDecoder`.
  Throws
  `HomeError.parseError` when parsing fails.

  #### Declaration

  Swift

      init(decoder: TraitDecoder) throws

  #### Parameters

  |---|---|
  | ` decoder ` | The raw data representing this Struct. |

- `


  ### [encode(with:)](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV6encode4withy0aB3SDK0F7EncoderC_tKF)


  ` Writes this Struct to the given `TraitEncoder`.
  Throws `HomeError.parseError` if the data could not be encoded.

  #### Declaration

  Swift

      func encode(with encoder: TraitEncoder) throws

- `


  ### [structField(id:)](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/EventTrack#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV10EventTrackV11structField2id0aB3SDK0J0_pSgs6UInt32V_tFZ)


  ` Returns the field corresponding to the given field ID.

  #### Declaration

  Swift

      static func structField(id: UInt32) -> (any Field)?