def validate(cls, v: Any) -> str:
            logger.warning(
                "email-validator not installed, email fields will be treated as str.\n"
                "To install, run: pip install email-validator"
            )
            return str(v)

        @classmethod
        def _validate(cls, __input_value: Any, _: Any) -> str:
            logger.warning(

   * that no character encoding is performed; the low byte and high byte of each {@code char} are
   * hashed directly (in that order).
   *
   * <p><b>Warning:</b> This method will produce different output than most other languages do when
   * running the same hash function on the equivalent input. For cross-language compatibility, use

   * that no character encoding is performed; the low byte and high byte of each {@code char} are
   * hashed directly (in that order).
   *
   * <p><b>Warning:</b> This method will produce different output than most other languages do when
   * running the same hash function on the equivalent input. For cross-language compatibility, use

  }

  /**
   * Creates a new {@code Multimap} backed by {@code map}, whose internal value collections are
   * generated by {@code factory}.
   *
   * <p><b>Warning: do not use</b> this method when the collections returned by {@code factory}
   * implement either {@link List} or {@code Set}! Use the more specific method {@link

        // If no OpenOptions were passed, delegate to Files.lines, which could have performance
        // advantages. (If OpenOptions were passed we can't, because Files.lines doesn't have an
        // overload taking OpenOptions, meaning we can't guarantee the same behavior w.r.t. things
        // like following/not following symlinks.)
        return new AsCharSource(charset) {
          @SuppressWarnings({

        // If no OpenOptions were passed, delegate to Files.lines, which could have performance
        // advantages. (If OpenOptions were passed we can't, because Files.lines doesn't have an
        // overload taking OpenOptions, meaning we can't guarantee the same behavior w.r.t. things
        // like following/not following symlinks.)
        return new AsCharSource(charset) {

engages in unacceptable behavior, the Square Code of Conduct committee may take any action they deem
appropriate, up to and including a permanent ban from all of Square spaces without warning.


[codeofconduct_at]: mailto:******@****.***
[twitter_coc]: https://github.com/twitter/code-of-conduct/blob/master/code-of-conduct.md
[ubuntu_coc]: https://ubuntu.com/community/code-of-conduct

 * Though the method signature doesn't say so explicitly, the map returned by {@link #asMap} has
 * {@code SortedSet} values.
 *
 * <p><b>Warning:</b> As in all {@link SetMultimap}s, do not modify either a key <i>or a value</i>
 * of a {@code SortedSetMultimap} in a way that affects its {@link Object#equals} behavior (or its

`lifespan` 🔢 `FastAPI` 📱 ✊ **🔁 🔑 👨‍💼**, 👥 💪 🚶‍♀️ 👆 🆕 `lifespan` 🔁 🔑 👨‍💼 ⚫️.

```Python hl_lines="22"
{!../../docs_src/events/tutorial003.py!}
```

## 🎛 🎉 (😢)

/// warning

👍 🌌 🍵 *🕴* & *🤫* ⚙️ `lifespan` 🔢 `FastAPI` 📱 🔬 🔛.

👆 💪 🎲 🚶 👉 🍕.

///

📤 🎛 🌌 🔬 👉 ⚛ 🛠️ ⏮️ *🕴* & ⏮️ *🤫*.

👆 💪 🔬 🎉 🐕‍🦺 (🔢) 👈 💪 🛠️ ⏭ 🈸 ▶️ 🆙, ⚖️ 🕐❔ 🈸 🤫 🔽.

# Zusätzliche Responses in OpenAPI

/// warning | "Achtung"

Dies ist ein eher fortgeschrittenes Thema.

Wenn Sie mit **FastAPI** beginnen, benötigen Sie dies möglicherweise nicht.

///

Sie können zusätzliche Responses mit zusätzlichen Statuscodes, Medientypen, Beschreibungen, usw. deklarieren.

Diese zusätzlichen Responses werden in das OpenAPI-Schema aufgenommen, sodass sie auch in der API-Dokumentation erscheinen.