utcTime property Null safety
@JsonKey(name: 'UtcTime', fromJson: OnvifUtil.nullableMappedToDateTime), read / write
Implementation
@JsonKey(name: 'UtcTime', fromJson: OnvifUtil.nullableMappedToDateTime)
DateTime? utcTime;
@JsonKey(name: 'UtcTime', fromJson: OnvifUtil.nullableMappedToDateTime)
DateTime? utcTime;