safekat/ci4/app/Models/Usuarios/GroupsUsersModel.php

<?php
namespace App\Models\Usuarios;

use App\Models\BaseModel;

class GroupsUsersModel extends BaseModel
{
    protected $table = 'auth_groups_users';
    protected $allowedFields = [ ];

    public function getUsersWithRol($token_group){

        $result = $this->select('token_user')->where('token_group', $token_group)->countAllResults();
        return $result;
    }
}