ここではPythonの型ヒントについての **クイックチュートリアル/リフレッシュ** で、**FastAPI**でそれらを使用するために必要な最低限のことだけをカバーしています。...実際には本当に少ないです。

**FastAPI** はすべてこれらの型ヒントに基づいており、多くの強みと利点を与えてくれます。

しかしたとえまったく **FastAPI** を使用しない場合でも、それらについて少し学ぶことで利点を得ることができるでしょう。

/// note | "備考"

もしあなたがPythonの専門家で、すでに型ヒントについてすべて知っているのであれば、次の章まで読み飛ばしてください。

///

## 動機

簡単な例から始めてみましょう:

```Python
{!../../docs_src/python_types/tutorial001.py!}
```

このプログラムを実行すると以下が出力されます:

                if (log.level >= 6) {
                    Hexdump.hexdump( log, sbuf, 4, n );
                }
            }

            out.write( sbuf, 0, 4 + n );
            out.flush();
            /* Note the Transport thread isn't running yet so we can
             * read from the socket here.
             */
            if (peekKey() == null) /* try to read header */

          <type>String</type>
          <description>
            Defines a default phase to bind a Mojo execution to if the user does not explicitly set a phase in the POM.
            &lt;p>&lt;b>Note:&lt;/b> This will not automagically make a Mojo run when the plugin declaration is added
            to the POM. It merely enables the user to omit the {@code &lt;phase&gt;} element from the

///

Mit `app.include_router()` können wir jeden `APIRouter` zur Hauptanwendung `FastAPI` hinzufügen.

Es wird alle Routen von diesem Router als Teil von dieser inkludieren.

/// note | "Technische Details"

Tatsächlich wird intern eine *Pfadoperation* für jede *Pfadoperation* erstellt, die im `APIRouter` deklariert wurde.

**FastAPI** is all based on these type hints, they give it many advantages and benefits.

But even if you never use **FastAPI**, you would benefit from learning a bit about them.

/// note

If you are a Python expert, and you already know everything about type hints, skip to the next chapter.

///

## Motivation

Let's start with a simple example:

```Python hl_lines="2"
@app.get('/')
async def read_results():
    results = await some_library()
    return results
```

/// note

`await` можно использовать только внутри функций, объявленных с использованием `async def`.

///

---

Если вы обращаетесь к сторонней библиотеке, которая с чем-то взаимодействует

  /**
   * Returns the empty map. This map behaves and performs comparably to {@link
   * Collections#emptyMap}, and is preferable mainly for consistency and maintainability of your
   * code.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableMap<K, V> of() {
    return (ImmutableMap<K, V>) RegularImmutableMap.EMPTY;
  }

  /**

	applyLifecycleAction(lcEvt, lcEventSrc_Scanner, oi)
	return lcEvt.Action, size
}

// applyNewerNoncurrentVersionLimit removes noncurrent versions older than the most recent NewerNoncurrentVersions configured.
// Note: This function doesn't update sizeSummary since it always removes versions that it doesn't return.

			return err
		}
	}
	return nil
}

type xlMetaV2VersionHeaderV2 struct {
	VersionID [16]byte
	ModTime   int64
	Signature [4]byte
	Type      uint8
	Flags     uint8
	EcN, EcM  uint8 // Note that these will be 0/0 for non-v2 objects and older xl.meta
}

// UnmarshalMsg implements msgp.Unmarshaler
func (z *xlMetaV2VersionHeaderV2) UnmarshalMsg(bts []byte, hdrVer uint) (o []byte, err error) {
	var zb0001 uint32

* Ask a **question** or ask about a **problem**.
* Suggest a new **feature**.

**Note**: if you do it, then I'm going to ask you to also help others. 😉

## Review Pull Requests

You can help me review pull requests from others.

Again, please try your best to be kind. 🤗

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