Добавление пользователей в группу

using System; 
using System.Collections.Generic; 
using System.Linq; 
using Comindware.Data.Entity; 
using Comindware.TeamNetwork.Api.Data.UserCommands; 
using Comindware.TeamNetwork.Api.Data; 
 
class Script 
{ 
    public static void Main(Comindware.Process.Api.Data.ScriptContext context) 
    { 
        string[] OA = new string[] { 
            "Kontragenty" 
        }; 
        string[] OP = new string[] { 
            "Podpisant" 
        }; 
        string[] GROUP = new string[] { 
            "group.28" 
        }; 
 
        for (int j = 0; j < GROUP.Length; j++) 
        { 
            var group = GROUP[j]; 
            var old_users = Api.Base.AccountGroupService.Get(group); 
            Api.Base.AccountGroupService.ExcludeMembers(group, old_users.Users); 
 
            var my_list = Api.TeamNetwork.ObjectService.ListWithAlias(OA[j]); 
            foreach (var i in my_list) 
            { 
                var data = i as Dictionary<string, object>; 
                data.TryGetValue(OP[j], out object obj); 
                if (obj == null) 
                { 
                    continue; 
                } 
 
                if (obj is string) 
                { 
                    Api.Base.AccountGroupService.IncludeMembers(group, new List<string>() { obj.ToString() }); 
                } 
                else 
                { 
                    var accounts = obj as object[]; 
                    var accountsIds = accounts.Select(x => x.ToString()); 
                    Api.Base.AccountGroupService.IncludeMembers(group, accountsIds); 
                } 
            } 
        } 
    } 
}