struct CameraHistoryItem

Represents a single event session recorded by the camera.
- `


  ### [sessionId](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV9sessionIdSSvp)


  ` The ID of the event session.

  #### Declaration

  Swift

      let sessionId: String

- `


  ### [startTimestampMillis](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV20startTimestampMilliss6UInt64Vvp)


  ` The start time of the event session in milliseconds since the Unix epoch.

  #### Declaration

  Swift

      let startTimestampMillis: UInt64

- `


  ### [endTimestampMillis](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV18endTimestampMilliss6UInt64Vvp)


  ` The end time of the event session in milliseconds since the Unix epoch.

  #### Declaration

  Swift

      let endTimestampMillis: UInt64

- `


  ### [eventTracks](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV11eventTracksSayAE10EventTrackVGvp)


  ` The event tracks for the event session.

  #### Declaration

  Swift

      let eventTracks: [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/EventTrack.html]

- `


  ### [captions](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV8captionsSayAE7CaptionVGvp)


  ` Captions for the event session.

  #### Declaration

  Swift

      let captions: [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/Caption.html]

- `


  ### [mediaUrl](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV8mediaUrlAE05MediaJ0Vvp)


  ` The media URLs for the event session.

  #### Declaration

  Swift

      let mediaUrl: 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/MediaUrl.html

- `


  ### [init(decoder:)](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/CameraTimelineTrait/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV7decoderAG0aB3SDK0F7DecoderV_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/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV6encode4withy0aB3SDK0F7EncoderC_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/CameraHistoryItem#/s:15GoogleHomeTypes0A0O19CameraTimelineTraitV0D11HistoryItemV11structField2id0aB3SDK0J0_pSgs6UInt32V_tFZ)


  ` Returns the field corresponding to the given field ID.

  #### Declaration

  Swift

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