int hashThree = map.hash(keyThree);
    InternalEntry<Object, Object, ?> entryThree =
        segment.newEntryForTesting(keyThree, hashThree, entryTwo);
    segment.setValueForTesting(entryThree, valueThree);

    // alone
    assertNull(segment.removeFromChainForTesting(entryOne, entryOne));

    // head
    assertSame(entryOne, segment.removeFromChainForTesting(entryTwo, entryTwo));

    // middle

    int hashThree = map.hash(keyThree);
    InternalEntry<Object, Object, ?> entryThree =
        segment.newEntryForTesting(keyThree, hashThree, entryTwo);
    segment.setValueForTesting(entryThree, valueThree);

    // alone
    assertNull(segment.removeFromChainForTesting(entryOne, entryOne));

    // head
    assertSame(entryOne, segment.removeFromChainForTesting(entryTwo, entryTwo));

    // middle

  // +optional
  repeated string hosts = 1;

  // secretName is the name of the secret used to terminate TLS traffic on
  // port 443. Field is left optional to allow TLS routing based on SNI
  // hostname alone. If the SNI host in a listener conflicts with the "Host"
  // header field used by an IngressRule, the SNI host is used for termination
  // and value of the "Host" header is used for routing.
  // +optional

```Dockerfile
CMD ["fastapi", "run", "app/main.py", "--proxy-headers", "--port", "80"]
```

#### Docker Cache

There's an important trick in this `Dockerfile`, we first copy the **file with the dependencies alone**, not the rest of the code. Let me tell you why is that.

```Dockerfile
COPY ./requirements.txt /code/requirements.txt
```

like being that person, I'll come up:  if not, I'll stay down
here till I'm somebody else"--but, oh dear!' cried Alice, with a
sudden burst of tears, `I do wish they WOULD put their heads
down!  I am so VERY tired of being all alone here!'

  As she said this she looked down at her hands, and was
surprised to see that she had put on one of the Rabbit's little
white kid gloves while she was talking.  `How CAN I have done

  // +optional
  repeated string hosts = 1;

  // SecretName is the name of the secret used to terminate SSL traffic on 443.
  // Field is left optional to allow SSL routing based on SNI hostname alone.
  // If the SNI host in a listener conflicts with the "Host" header field used
  // by an IngressRule, the SNI host is used for termination and value of the
  // Host header is used for routing.
  // +optional

    Object valueThree = new Object();
    int hashThree = map.hash(keyThree);
    DummyEntry<Object, Object> entryThree =
        createDummyEntry(keyThree, hashThree, valueThree, entryTwo);

    // alone
    assertNull(segment.removeEntryFromChain(entryOne, entryOne));

    // head
    assertSame(entryOne, segment.removeEntryFromChain(entryTwo, entryTwo));

    // middle

    Object valueThree = new Object();
    int hashThree = map.hash(keyThree);
    DummyEntry<Object, Object> entryThree =
        createDummyEntry(keyThree, hashThree, valueThree, entryTwo);

    // alone
    assertNull(segment.removeEntryFromChain(entryOne, entryOne));

    // head
    assertSame(entryOne, segment.removeEntryFromChain(entryTwo, entryTwo));

    // middle

   * to {@code statusFuture} <i>in addition to</i> the call you make to {@link #finishToFuture()} or
   * a derivation method <i>on the same instance</i>. This is important because calling {@code
   * statusFuture} alone does not provide a way to close the pipeline.
   */
  public ListenableFuture<?> statusFuture() {
    return nonCancellationPropagating(future.transform(constant(null), directExecutor()));
  }

  /**

        app = FastAPI()
        router = APIRouter()

        @router.head("/items/", status_code=204)
        def get_items_headers(response: Response):
            response.headers["X-Cat-Dog"] = "Alone in the world"

        app.include_router(router)
        ```
        """
        return self.api_route(
            path=path,
            response_model=response_model,