[Fix]

lib/src/models/conversation_info.dart

@@ -4,6 +4,7 @@ import 'package:flutter_openim_sdk/flutter_openim_sdk.dart';
 
 class ConversationInfo {
   String conversationID;
+
   /// [ConversationType]
   int? conversationType;
   String? userID;

lib/src/models/group_info.dart

@@ -18,7 +18,7 @@ class GroupInfo {
       this.createTime,
       this.memberCount});
 
-  GroupInfo.fromJson(Map<String, dynamic> json): groupID = json['groupID'] {
+  GroupInfo.fromJson(Map<String, dynamic> json) : groupID = json['groupID'] {
     /*groupID = json['groupID'];*/
     groupName = json['groupName'];
     notification = json['notification'];

lib/src/models/message.dart

@@ -1,5 +1,3 @@
-
-
 class Message {
   String? clientMsgID;
   String? serverMsgID;
@@ -69,8 +67,8 @@ class Message {
     this.mergeElem,
   });
 
-  Message.fromJson(Map<String, dynamic> json)
-  /*  : clientMsgID = json['clientMsgID']*/ {
+  Message.fromJson(
+      Map<String, dynamic> json) /*  : clientMsgID = json['clientMsgID']*/ {
     clientMsgID = json['clientMsgID'];
     serverMsgID = json['serverMsgID'];
     createTime = json['createTime'];