Sadəcə standart **Python**.

Məsələn, `int` üçün:

```Python
item_id: int
```

və ya daha mürəkkəb `Item` modeli üçün:

```Python
item: Item
```

...və yalnız parametr tipini təyin etməklə bunları əldə edirsiniz:

* Redaktor dəstəyi ilə:
    * Avtomatik tamamlama.
    * Tip yoxlanması.

#### `RequestValidationError`と`ValidationError`

/// warning | "注意"

これらは今のあなたにとって重要でない場合は省略しても良い技術的な詳細です。

///

`RequestValidationError`はPydanticの<a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a>のサブクラスです。

**FastAPI** は`response_model`でPydanticモデルを使用していて、データにエラーがあった場合、ログにエラーが表示されるようにこれを使用しています。

O Pydantic tem um comportamento especial quando você usa `Optional` ou `Union[Something, None]` sem um valor padrão. Você pode ler mais sobre isso na documentação do Pydantic sobre <a href="https://docs.pydantic.dev/2.3/usage/models/#required-fields" class="external-link" target="_blank">campos Opcionais Obrigatórios</a>.

///


## Type Hints com Metadados de Anotações

/// tip

Pydantic ✔️ 🎁 🎭 🕐❔ 👆 ⚙️ `Optional` ⚖️ `Union[Something, None]` 🍵 🔢 💲, 👆 💪 ✍ 🌅 🔃 ⚫️ Pydantic 🩺 🔃 <a href="https://docs.pydantic.dev/latest/concepts/models/#required-optional-fields" class="external-link" target="_blank">✔ 📦 🏑</a>.

///

## 🆎 🔑 **FastAPI**

**FastAPI** ✊ 📈 👫 🆎 🔑 📚 👜.

⏮️ **FastAPI** 👆 📣 🔢 ⏮️ 🆎 🔑 &amp; 👆 🤚:

import java.util.Objects;
import java.util.Properties;

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.eventspy.internal.EventSpyDispatcher;
import org.apache.maven.model.Profile;
import org.apache.maven.model.root.RootLocator;
import org.apache.maven.project.DefaultProjectBuildingRequest;
import org.apache.maven.project.ProjectBuildingRequest;
import org.apache.maven.properties.internal.SystemProperties;

import org.apache.maven.api.services.ToolchainsBuilder;
import org.apache.maven.api.services.ToolchainsBuilderRequest;
import org.apache.maven.api.services.ToolchainsBuilderResult;
import org.apache.maven.api.services.model.ModelProcessor;
import org.apache.maven.cli.CLIReportingUtils;
import org.apache.maven.cli.event.ExecutionEventLogger;
import org.apache.maven.cling.invoker.LookupInvoker;
import org.apache.maven.cling.invoker.ProtoLookup;

pkg image, type RGBA64Image interface, RGBA64At(int, int) color.RGBA64
pkg image/draw, type RGBA64Image interface { At, Bounds, ColorModel, RGBA64At, Set, SetRGBA64 }
pkg image/draw, type RGBA64Image interface, At(int, int) color.Color
pkg image/draw, type RGBA64Image interface, Bounds() image.Rectangle
pkg image/draw, type RGBA64Image interface, ColorModel() color.Model

 */
package org.apache.maven.api;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.model.ModelBase;

/**
 * <p>A <dfn>remote repository</dfn> is a central or distributed location
 * from which Maven can download project dependencies, plugins, and other

      description: If compiling from source
  - type: input
    id: Cuda
    attributes:
      label: CUDA/cuDNN version
  - type: input
    id: Gpu
    attributes:
      label: GPU model and memory
      description: If compiling from source
  - type: textarea
    id: what-happened
    attributes:
      label: Current behavior?
      description: Also tell us, what did you expect to happen?

import org.gradle.api.file.FileTree
import org.gradle.api.file.FileVisitDetails
import org.gradle.api.file.RegularFileProperty
import org.gradle.api.logging.LogLevel
import org.gradle.api.model.ObjectFactory
import org.gradle.api.tasks.CacheableTask
import org.gradle.api.tasks.Classpath
import org.gradle.api.tasks.InputDirectory
import org.gradle.api.tasks.InputFile
import org.gradle.api.tasks.InputFiles