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[[V2TIMManager sharedInstance] getGroupsInfo:@[@"groupA"] succ:^(NSArray<V2TIMGroupInfoResult *> *groupResultList) {
    // Obtained the group profile successfully
} fail:^(int code, NSString *desc) {
    // Failed to obtain the group profile
}];
V2TIMGroupInfo *info = [[V2TIMGroupInfo alloc] init];
info.groupID = @"Group ID of the group to be modified";
info.faceURL = @"http://xxxx";
[[V2TIMManager sharedInstance] setGroupInfo:info succ:^{
    // Modified the group profile successfully
} fail:^(int code, NSString *desc) {
    // Failed to modify the group profile
}];

// Get the group profile
V2TimValueCallback<List<V2TimGroupInfoResult>> groupinfos = await groupManager.getGroupsInfo(groupIDList: ['groupid1']);
// Modify the group profile
groupManager.setGroupInfo(info: V2TimGroupInfo.fromJson({
    "groupAddOpt":GroupAddOptTypeEnum.V2TIM_GROUP_ADD_AUTH
    // ...Other profiles
  }));
// Callback
TencentImSDKPlugin.v2TIMManager.addGroupListener(listener: V2TimGroupListener(onGroupInfoChanged: ((groupID, changeInfos) {
    // The group information was changed.
  })));

// Get the group profile
let promise = tim.getGroupProfile({ groupID: 'group1', groupCustomFieldFilter: ['key1','key2'] });
promise.then(function(imResponse) {
  console.log(imResponse.data.group);
}).catch(function(imError){
  console.warn('getGroupProfile error:', imError); // Error information
});
// Modify the group profile
let promise = tim.updateGroupProfile({
  groupID: 'group1',
  name: 'new name', // Modify the group name
  introduction: 'this is introduction.', // Modify the group introduction
  // Starting from v2.6.0, group members can receive group messages about group custom field modifications and obtain related content. For more information, see Message.payload.newGroupProfile.groupCustomField.
  groupCustomField: [{ key: 'group_level', value: 'high'}] // Modify the group custom field
});
promise.then(function(imResponse) {
  console.log(imResponse.data.group) // Detailed group profile after modification
}).catch(function(imError){
  console.warn('updateGroupProfile error:', imError); // Error information
});
// Starting from v2.6.2, the SDK supports muting and unmuting all. Currently, when all users are muted in a group, group notifications cannot be delivered.
let promise = tim.updateGroupProfile({
  groupID: 'group1',
  muteAllMembers: true, // `true`: mute all; `false`: unmute all
});
promise.then(function(imResponse) {
  console.log(imResponse.data.group) // Detailed group profile after modification
}).catch(function(imError){
  console.warn('updateGroupProfile error:', imError); // Error information
});

// Create a text message
V2TIMMessage *message = [[V2TIMManager sharedInstance] createTextMessage:@"content"];
// Send the message
[V2TIMManager.sharedInstance sendMessage:message
                                receiver:@"userID"
                                 groupID:nil
                                priority:V2TIM_PRIORITY_NORMAL
                          onlineUserOnly:NO
                         offlinePushInfo:nil
                                progress:nil
                                succ:^{
    // The text message sent successfully
}
                                fail:^(int code, NSString *desc) {
    // Failed to send the text message
}];

// Create a text message
V2TimValueCallback<V2TimMsgCreateInfoResult> createTextAtMessageRes = await TencentImSDKPlugin.v2TIMManager.getMessageManager().createTextAtMessage(
    text: "test",
    atUserList: [],
  );
 if(createTextAtMessageRes.code == 0){
    String id =  createTextAtMessageRes.data.id;

       // Send the text message
    V2TimValueCallback<V2TimMessage> sendMessageRes = await TencentImSDKPlugin.v2TIMManager.getMessageManager().sendMessage(id: id, receiver: "", groupID: "groupID");
    if(sendMessageRes.code == 0){
      // The message sent successfully
    }
  }