def default_create_token(token_model, user, serializer):
    token, _ = token_model.objects.get_or_create(user=user)
    return token


def jwt_encode(user):
    try:
        from rest_framework_jwt.settings import api_settings
    except ImportError:
        raise ImportError("djangorestframework_jwt needs to be installed")

    jwt_payload_handler = api_settings.JWT_PAYLOAD_HANDLER
    jwt_encode_handler = api_settings.JWT_ENCODE_HANDLER

    payload = jwt_payload_handler(user)
    return jwt_encode_handler(payload)