* the key is moved, deleted, or reinserted, it will account for that -- while not doing any extra
   * work if the key has not moved. One quirk: The {@link #getValue()} method can return {@code
   * null} even for a map which supposedly does not contain null elements, if the key is not present
   * when {@code getValue()} is called.
   */
  final class EntryForKey extends AbstractMapEntry<K, V> {

* La response `418`. 🍵

Pero eso solo afectará a ese `APIRouter` en nuestra aplicación, no en ningún otro código que lo utilice.

Así, por ejemplo, otros proyectos podrían usar el mismo `APIRouter` con un método de autenticación diferente.

### Incluir una *path operation*

También podemos agregar *path operations* directamente a la aplicación de `FastAPI`.

Aquí lo hacemos... solo para mostrar que podemos 🤷:

* A resposta `418`. 🍵

Mas isso afetará apenas o `APIRouter` em nosso aplicativo, e não em nenhum outro código que o utilize.

Assim, por exemplo, outros projetos poderiam usar o mesmo `APIRouter` com um método de autenticação diferente.

### Incluir uma *operação de rota*

Também podemos adicionar *operações de rota* diretamente ao aplicativo `FastAPI`.

Aqui fazemos isso... só para mostrar que podemos 🤷:

	t.Setenv("GODEBUG", "zipinsecurepath=0")
	// Archive contains a file whose name is exclusively made up of '/', '\'
	// characters, or "../", "..\" paths, which would previously cause a panic.
	//
	//  Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
	// --------  ------  ------- ---- ---------- ----- --------  ----
	//        0  Stored        0   0% 08-05-2021 18:32 00000000  /

			t.missedImmediateTasks.Add(1)
		}
	}
}

var globalTransitionState *transitionState

// newTransitionState returns a transitionState object ready to be initialized
// via its Init method.
func newTransitionState(ctx context.Context) *transitionState {
	return &transitionState{
		transitionCh: make(chan transitionTask, 100000),
		ctx:          ctx,
		killCh:       make(chan struct{}),

    assertEquals(Range.atLeast(4), range.span(Range.atLeast(10)));
  }

  @SuppressWarnings({"InlineMeInliner", "deprecation"}) // intentional test of depecated method
  public void testPredicateMethods() {
    Range<Integer> predicate = Range.closed(2, 3);

    assertFalse(predicate.apply(1));
    assertTrue(predicate.apply(2));
    assertTrue(predicate.apply(3));

		})
	})
	assertEqualSQL(t, `SELECT * FROM users ORDER BY id DESC`, sql)
}

// assertEqualSQL for assert that the sql is equal, this method will ignore quote, and dialect specials.
func assertEqualSQL(t *testing.T, expected string, actually string) {
	t.Helper()

	// replace SQL quote, convert into postgresql like ""
	expected = replaceQuoteInSQL(expected)

	}

	// Query string.
	queryStr := req.Form.Encode()

	// Get canonical request.
	canonicalRequest := getCanonicalRequest(extractedSignedHeaders, payload, queryStr, req.URL.Path, req.Method)

	// Get string to sign from canonical request.
	stringToSign := getStringToSign(canonicalRequest, date, signV4Values.Credential.getScope())

	// Get hmac signing key.

এটি একটি খুব সাধারণ প্রোগ্রাম।

কিন্তু এখন কল্পনা করুন যে আপনি এটি শুরু থেকে লিখছিলেন।

এক পর্যায়ে আপনি ফাংশনের সংজ্ঞা শুরু করেছিলেন, আপনার প্যারামিটারগুলি প্রস্তুত ছিল...

কিন্তু তারপর আপনাকে "সেই method কল করতে হবে যা প্রথম অক্ষরকে বড় হাতের অক্ষরে রূপান্তর করে"।

এটা কি `upper` ছিল? নাকি `uppercase`? `first_uppercase`? `capitalize`?

তারপর, আপনি পুরোনো প্রোগ্রামারের বন্ধু, এডিটর অটোকমপ্লিশনের সাহায্যে নেওয়ার চেষ্টা করেন।

It's a very simple program.

But now imagine that you were writing it from scratch.

At some point you would have started the definition of the function, you had the parameters ready...

But then you have to call "that method that converts the first letter to upper case".

Was it `upper`? Was it `uppercase`? `first_uppercase`? `capitalize`?

Then, you try with the old programmer's friend, editor autocompletion.