更新多个用户连接同一个设备的通知

lib/model/WebSocketMessage.dart

@@ -7,8 +7,9 @@ class WebSocketMessage {
   String path;
   int? type;
   dynamic data;
+  String? to;
 
-  WebSocketMessage({required this.path, this.type, this.data});
+  WebSocketMessage({required this.path, this.type, this.data, this.to});
 
   static WebSocketMessage fromJson(Map<String, dynamic> json) =>
       _$WebSocketMessageFromJson(json);

lib/model/WebSocketMessage.g.dart

@@ -11,6 +11,7 @@ WebSocketMessage _$WebSocketMessageFromJson(Map<String, dynamic> json) =>
       path: json['path'] as String,
       type: (json['type'] as num?)?.toInt(),
       data: json['data'],
+      to: json['to'] as String?,
     );
 
 Map<String, dynamic> _$WebSocketMessageToJson(WebSocketMessage instance) =>
@@ -18,4 +19,5 @@ Map<String, dynamic> _$WebSocketMessageToJson(WebSocketMessage instance) =>
       'path': instance.path,
       'type': instance.type,
       'data': instance.data,
+      'to': instance.to,
     };