func registerAPIRouter(router *mux.Router) {
	// Initialize API.
	api := objectAPIHandlers{
		ObjectAPI: newObjectLayerFn,
	}

	// API Router
	apiRouter := router.PathPrefix(SlashSeparator).Subrouter()

	var routers []*mux.Router
	for _, domainName := range globalDomainNames {
		if IsKubernetes() {

    sub_router = APIRouter(lifespan=subrouter_lifespan)

    router = APIRouter(lifespan=router_lifespan)
    router.include_router(sub_router)

    app = FastAPI(lifespan=lifespan)
    app.include_router(router)

    @app.get("/")
    def main(request: Request) -> dict[str, str]:
        assert request.state.app
        assert request.state.router
        assert request.state.sub_router

from fastapi.testclient import TestClient
from pydantic import BaseModel


def custom_generate_unique_id(route: APIRoute):
    return f"foo_{route.name}"


def custom_generate_unique_id2(route: APIRoute):
    return f"bar_{route.name}"


def custom_generate_unique_id3(route: APIRoute):
    return f"baz_{route.name}"


class Item(BaseModel):
    name: str
    price: float


class Message(BaseModel):

        assert data == ["app", "index"]


def test_routerindex():
    client = TestClient(app)
    with client.websocket_connect("/router") as websocket:
        data = json.loads(websocket.receive_text())
        assert data == ["app", "router2", "router", "routerindex"]


def test_routerprefixindex():
    client = TestClient(app)
    with client.websocket_connect("/prefix/") as websocket:

We are importing the submodule `items` directly, instead of importing just its variable `router`.

This is because we also have another variable named `router` in the submodule `users`.

If we had imported one after the other, like:

```Python
from .routers.items import router
from .routers.users import router
```

from fastapi import APIRouter

router = APIRouter()


@router.get("/users/", tags=["users"])
async def read_users():
    return [{"username": "Rick"}, {"username": "Morty"}]


@router.get("/users/me", tags=["users"])
async def read_user_me():
    return {"username": "fakecurrentuser"}


@router.get("/users/{username}", tags=["users"])
async def read_user(username: str):

Estamos importando el submódulo `items` directamente, en lugar de importar solo su variable `router`.

Esto se debe a que también tenemos otra variable llamada `router` en el submódulo `users`.

Si hubiéramos importado uno después del otro, como:

```Python
from .routers.items import router
from .routers.users import router
```

el `router` de `users` sobrescribiría el de `items` y no podríamos usarlos al mismo tiempo.

            response.headers["X-Response-Time"] = str(duration)
            print(f"route duration: {duration}")
            print(f"route response: {response}")
            print(f"route response headers: {response.headers}")
            return response

        return custom_route_handler


app = FastAPI()
router = APIRouter(route_class=TimedRoute)


@app.get("/")
async def not_timed():

)
async def read_with_get_token():
    return {"message": "Admin Access"}


router = APIRouter(dependencies=[Security(oauth2_scheme, scopes=["read"])])


@router.get("/items/")
async def read_items(token: Optional[str] = Depends(oauth2_scheme)):
    return {"token": token}


@router.post("/items/")
async def create_item(
    token: Optional[str] = Security(oauth2_scheme, scopes=["read", "write"]),

Estamos importando o submódulo `items` diretamente, em vez de importar apenas sua variável `router`.

Isso ocorre porque também temos outra variável chamada `router` no submódulo `users`.

Se tivéssemos importado um após o outro, como:

```Python
from .routers.items import router
from .routers.users import router
```

o `router` de `users` sobrescreveria o de `items` e não poderíamos usá-los ao mesmo tempo.