api_router.include_router(
    fastapi_users.get_register_router(UserRead, UserCreate, response_model_by_alias=False),
    prefix="/auth",
    tags=["auth"],
)

    def get_register_router(
        self, user_schema: Type[schemas.U], user_create_schema: Type[schemas.UC], **kwargs
    ) -> APIRouter:
        """
        Return a router with a register route.

        :param user_schema: Pydantic schema of a public user.
        :param user_create_schema: Pydantic schema for creating a user.
        """
        return get_register_router(
            self.get_user_manager, user_schema, user_create_schema, **kwargs
        )

def get_register_router(
    get_user_manager: UserManagerDependency[models.UP, models.ID],
    user_schema: Type[schemas.U],
    user_create_schema: Type[schemas.UC],
    **kwargs
) -> APIRouter:
    """Generate a router with the register route."""
    router = APIRouter()

    @router.post(
        "/register",
        response_model=user_schema,
        status_code=status.HTTP_201_CREATED,
        name="register:register",
        **kwargs,
....