Abgesehen von normalen einfachen Typen, wie `str`, `int`, `float`, usw. können Sie komplexere einfache Typen verwenden, die von `str` erben.

Um alle Optionen kennenzulernen, die Sie haben, schauen Sie sich <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantics Typübersicht</a> an. Sie werden im nächsten Kapitel ein paar Beispiele kennenlernen.

further defined and clarified by project maintainers.

## Enforcement

Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by contacting the project team at dev@min.io. The project team
will review and investigate all complaints, and will respond in a way that it deems
appropriate to the circumstances. The project team is obligated to maintain

## Content-Type

    title: Fine-Grained Authorization for FastAPI
    img: https://fastapi.tiangolo.com/img/sponsors/permit.png
  - url: https://www.interviewpal.com/?utm_source=fastapi&utm_medium=open-source&utm_campaign=dev-hiring
    title: InterviewPal - AI Interview Coach for Engineers and Devs
    img: https://fastapi.tiangolo.com/img/sponsors/interviewpal.png
  - url: https://dribia.com/en/
    title: Dribia - Data Science within your reach

Peter Niederwieser <******@****.***> <pniederw@pniederw-PC.(none)>
Piotr Jagielski <******@****.***> <Piotr Jagielski>
Rene Groeschke <******@****.***> <Rene@DevWin7.(none)>
Rene Groeschke <******@****.***> <dev@breskeby.com>
Rene Groeschke <******@****.***> <******@****.***>
Rene Groeschke <******@****.***> <******@****.***>
Rene Groeschke <******@****.***> <******@****.***>

    return (int) Math.pow(a, 1.0 / concentration);
  }

  @AfterExperiment
  void tearDown() {
    double req = requests.get();
    double hit = req - misses.get();

    // Currently, this is going into /dev/null, but I'll fix that
    System.out.println("hit rate: " + hit / req);
  }

  // for proper distributions later:
  // import JSci.maths.statistics.ProbabilityDistribution;

    <img src="https://github.com/fastapi/fastapi/actions/workflows/test.yml/badge.svg?event=push&branch=master" alt="Test">
</a>
<a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/fastapi/fastapi" target="_blank">
    <img src="https://coverage-badge.samuelcolvin.workers.dev/fastapi/fastapi.svg" alt="Coverage">
</a>
<a href="https://pypi.org/project/fastapi" target="_blank">

/// info

FastAPI ⚙️ Pydantic 🏷 `.dict()` ⏮️ <a href="https://docs.pydantic.dev/latest/concepts/serialization/#modeldict" class="external-link" target="_blank">🚮 `exclude_unset` 🔢</a> 🏆 👉.

///

/// info

👆 💪 ⚙️:

* `response_model_exclude_defaults=True`
* `response_model_exclude_none=True`

{* ../../docs_src/first_steps/tutorial001.py *}

Copy that to a file `main.py`.

Run the live server:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

👈 🌌 👤 💪 🔎 🏆 🌌 📉 📟 ❎ 🌅 💪, ✔️ 🛠️ 🌐, 🆎 & ❌ ✅, ♒️.

🌐 🌌 👈 🚚 🏆 🛠️ 💡 🌐 👩‍💻.

## 📄

⏮️ 🔬 📚 🎛, 👤 💭 👈 👤 🔜 ⚙️ <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">**Pydantic**</a> 🚮 📈.

⤴️ 👤 📉 ⚫️, ⚒ ⚫️ 🍕 🛠️ ⏮️ 🎻 🔗, 🐕‍🦺 🎏 🌌 🔬 ⚛ 📄, &amp; 📉 👨‍🎨 🐕‍🦺 (🆎 ✅, ✍) ⚓️ 🔛 💯 📚 👨‍🎨.