extension property Null safety
@JsonKey(fromJson: castPlatformMapToDartMap), final
第三方扩展字段, 长度4k
Implementation
@JsonKey(fromJson: castPlatformMapToDartMap)
final Map<String, dynamic>? extension;
第三方扩展字段, 长度4k
@JsonKey(fromJson: castPlatformMapToDartMap)
final Map<String, dynamic>? extension;