/// note | 備考

パーツ毎にインストールすることも可能です。

以下は、アプリケーションを本番環境にデプロイする際に行うであろうものです:

```
pip install fastapi
```

また、サーバーとして動作するように`uvicorn` をインストールします:

```
pip install "uvicorn[standard]"
```

そして、使用したい依存関係をそれぞれ同様にインストールします。

///

## 高度なユーザーガイド

**高度なユーザーガイド**もあり、**チュートリアル - ユーザーガイド**の後で読むことができます。

**高度なユーザーガイド**は**チュートリアル - ユーザーガイド**に基づいており、同じ概念を使用し、いくつかの追加機能を紹介しています。

 * implement subtleties of the API improperly.
 *
 * <p><b>Custom implementation</b>: Avoid implementing {@code ListenableFuture} from scratch. If you
 * can't get by with the standard implementations, prefer to derive a new {@code Future} instance
 * with the methods in {@link Futures} or, if necessary, to extend {@link AbstractFuture}.
 *

This is not a limitation of **FastAPI**, it's part of the HTTP protocol.

///

## Optional File Upload { #optional-file-upload }

You can make a file optional by using standard type annotations and setting a default value of `None`:

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

## `UploadFile` with Additional Metadata { #uploadfile-with-additional-metadata }

 * This class manages the rules defined in a robots.txt file, including user agent directives,
 * allowed/disallowed paths, crawl delays, and sitemap URLs.
 *
 * <p>The robots.txt protocol is implemented according to the standard specification,
 * supporting pattern matching for user agents, path-based access control, and crawl delay settings.</p>
 *
 * <p>Key features:</p>
 * <ul>

    /** LZ77 compression */
    public static final int COMPRESSION_LZ77 = 0x1;
    /** LZ77 + Huffman compression */
    public static final int COMPRESSION_LZ77_HUFFMAN = 0x2;
    /** LZNT1 compression (Windows standard) */
    public static final int COMPRESSION_LZNT1 = 0x3;
    /** Pattern V1 compression */
    public static final int COMPRESSION_PATTERN_V1 = 0x4;

    private int[] compressionAlgorithms;
    private int flags;

## Eine Taskfunktion erstellen

Erstellen Sie eine Funktion, die als Hintergrundtask ausgeführt werden soll.

Es handelt sich schlicht um eine Standard-Funktion, die Parameter empfangen kann.

Es kann sich um eine `async def`- oder normale `def`-Funktion handeln. **FastAPI** weiß, wie damit zu verfahren ist.

        // Test with another key usage
        byte[] mac3 = PacMac.calculateMacArcfourHMACMD5(23, key, TEST_DATA);
        assertNotNull(mac3);
        assertEquals(16, mac3.length);

        // Test with a standard usage
        byte[] mac4 = PacMac.calculateMacArcfourHMACMD5(15, key, TEST_DATA);
        assertNotNull(mac4);
        assertEquals(16, mac4.length);
    }

    /**
     * Test method for

# OAuth2 scopes { #oauth2-scopes }

You can use OAuth2 scopes directly with **FastAPI**, they are integrated to work seamlessly.

This would allow you to have a more fine-grained permission system, following the OAuth2 standard, integrated into your OpenAPI application (and the API docs).

   * interpreted as outside of the character set of the standard code table until a Shift In
   * character is reached.
   *
   * @since 8.0
   */
  public static final byte SO = 14;

  /**
   * Shift In: A control character indicating that the code combinations which follow shall be
   * interpreted according to the standard code table.
   *
   * @since 8.0
   */

- **MS-SMB2 Section 3.3.5.9.11**: Directory Leasing and Caching

## 3. Directory Lease Types

### 3.1 Directory-Specific Lease States
```java
public class DirectoryLeaseState extends Smb2LeaseState {
    // Standard lease states apply, plus directory-specific semantics:
    
    // READ_CACHING for directories means:
    // - Can cache directory enumeration results
    // - Can cache file existence queries