public async Task <IActionResult> DeleteIIM(string username)
        {
            var service = new AmazonIAMService();
            await service.DeleteUser(username);

            var response = new GenericResponse <string>()
            {
                IsSuccess    = true,
                Message      = "User deleted successfully.",
                ResponseCode = 200,
                Result       = "Success"
            };

            return(Ok(response));
        }