/// tip | 팁

`callback=`에 라우터 자체(`invoices_callback_router`)를 넘기는 것이 아니라, `invoices_callback_router.routes`처럼 `.routes` 속성을 넘긴다는 점에 주목하세요.

///

### 문서 확인하기 { #check-the-docs }

이제 앱을 실행하고 [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs)로 이동하세요.

*경로 처리*에 대해 "Callbacks" 섹션을 포함한 문서가 표시되며, *external API*가 어떤 형태여야 하는지 확인할 수 있습니다:

common_parameters --> read_items
common_parameters --> read_users
```

Assim, você escreve um código compartilhado apenas uma vez e o **FastAPI** se encarrega de chamá-lo em suas *operações de rota*.

/// check | Verifique

Perceba que você não precisa criar uma classe especial e enviar a dependência para algum outro lugar em que o **FastAPI** a "registre" ou realize qualquer operação similar.

	}
	writeErr(remote.handleIncoming(ctx, conn, cReq))
}

// AuthFn should provide an authentication string for the given aud.
type AuthFn func() string

// ValidateAuthFn should check authentication for the given aud.
type ValidateAuthFn func(auth string) string

// Connection will return the connection for the specified host.
// If the host does not exist nil will be returned.

        }
        if (value != null) {
            return new String[] { value.toString() };
        }

        return new String[0];
    }

    /**
     * Check if the search word is excluded.
     * @param searchWord Search word
     * @param field Field
     * @param langs Languages
     * @param analyzer Analyzer
     * @return True if the search word is excluded
     */

    // Not a valid string
    assertNotWellFormed(-1, 0, -1, 0);
  }

  public void testShardsHaveExpectedRoundTrippables() {
    // A sanity check.
    long actual = 0;
    for (long expected : generateFourByteShardsExpectedRunnables()) {
      actual += expected;
    }
    assertEquals(EXPECTED_FOUR_BYTE_ROUNDTRIPPABLE_COUNT, actual);
  }

        assertEquals(expectedLength, ndrBuffer.getIndex());
        assertEquals(expectedLength, ndrBuffer.getLength());

        // Verify content (simplified check, full verification would involve decoding)
        assertEquals(testString.length() + 1, Encdec.dec_uint32le(buffer, 0)); // Actual count
        assertEquals(0, Encdec.dec_uint32le(buffer, 4)); // Offset

common_parameters --> read_items
common_parameters --> read_users
```

Auf diese Weise schreiben Sie gemeinsam genutzten Code nur einmal, und **FastAPI** kümmert sich darum, ihn für Ihre *Pfadoperationen* aufzurufen.

/// check | Testen

Beachten Sie, dass Sie keine spezielle Klasse erstellen und diese irgendwo an **FastAPI** übergeben müssen, um sie zu „registrieren“ oder so ähnlich.

	xlVersionMinor = 1
)

func init() {
	binary.LittleEndian.PutUint16(xlVersionCurrent[0:2], xlVersionMajor)
	binary.LittleEndian.PutUint16(xlVersionCurrent[2:4], xlVersionMinor)
}

// checkXL2V1 will check if the metadata has correct header and is a known major version.
// The remaining payload and versions are returned.
func checkXL2V1(buf []byte) (payload []byte, major, minor uint16, e error) {
	if len(buf) <= 8 {

/// tip | 豆知識

`APIRouter` に `dependencies` を置くことで、*path operations* のグループ全体に認証を要求する、といった用途に使えます。個々の *path operation* に依存関係を追加していなくても構いません。

///

/// check | 確認

`prefix`、`tags`、`responses`、`dependencies` の各パラメータは（ほかの多くのケースと同様に）コード重複を避けるための **FastAPI** の機能です。

///

### 依存関係をインポート { #import-the-dependencies }

	vectors := []struct {
		file     string    // Test input file
		obscured bool      // Obscured with obscuretestdata package
		headers  []*Header // Expected output headers
		chksums  []string  // CRC32 checksum of files, leave as nil if not checked
		err      error     // Expected error to occur
	}{{
		file: "testdata/gnu.tar",
		headers: []*Header{{
			Name:     "small.txt",
			Mode:     0640,
			Uid:      73025,
			Gid:      5000,