sourceMask property
Indicates that privacy masks are only supported at the video source level and not the video source configuration level. If this is true any addition, deletion or change of a privacy mask done for one video source configuration will automatically be applied by the device to a corresponding privacy mask for all other video source configuration associated with the same video source.
Implementation
@JsonKey(name: 'SourceMask', fromJson: OnvifUtil.nullableStringToBool)
final bool? sourceMask;