use_in_migrations = True

def _create_user(self, username, email, password, **extra_fields):
    """
   Creates and saves a User with the given username, email and password.
   """
    if not username:
        raise ValueError('The given username must be set')
    email = self.normalize_email(email)
    username = self.model.normalize_username(username)
    user = self.model(username=username, email=email, **extra_fields)
    user.set_password(password)
    user.save(using=self._db)
    return user

def create_user(self, username, email=None, password=None, **extra_fields):
    ...

def create_superuser(self, username, email, password, **extra_fields):
    ...

def create_controller(self, username, email, password, **extra_fields):
    extra_fields.setdefault('is_staff', True)
    extra_fields.setdefault('is_superuser', False)

    if extra_fields.get('is_staff') is not True:
        raise ValueError('Controller must have is_staff=True.')

    return self._create_user(username, email, password, **extra_fields)

first_name="vorname_pruefer1",
                                last_name="nachname_pruefer1",
                                password='django_test',
                                email="test@web.de")