pushPayload property Null safety
@JsonKey(fromJson: castPlatformMapToDartMap), read / write
消息推送Payload @discussion iOS 上支持字段参考苹果技术文档,长度限制 2K,撤回消息时该字段无效
Implementation
@JsonKey(fromJson: castPlatformMapToDartMap)
Map<String, dynamic>? pushPayload;