The result of calling it is something that can be encoded with the Python standard [`json.dumps()`](https://docs.python.org/3/library/json.html#json.dumps).

It doesn't return a large `str` containing the data in JSON format (as a string). It returns a Python standard data structure (e.g. a `dict`) with values and sub-values that are all compatible with JSON.

/// note

例如，要安装 Uvicorn，可以运行以下命令：

<div class="termy">

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

---> 100%
```

</div>

类似的流程也适用于任何其他 ASGI 服务器程序。

/// tip | 提示

通过添加 `standard` 选项，Uvicorn 将安装并使用一些推荐的额外依赖项。

其中包括 `uvloop`，这是 `asyncio` 的高性能替代方案，能够显著提升并发性能。

当您使用 `pip install "fastapi[standard]"` 安装 FastAPI 时，实际上也会安装 `uvicorn[standard]`。

///

## 运行服务器程序 { #run-the-server-program }

<div class="termy">

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

---> 100%
```

</div>

다른 어떤 ASGI 서버 프로그램도 비슷한 과정이 적용됩니다.

/// tip | 팁

`standard`를 추가하면 Uvicorn이 권장되는 추가 의존성 몇 가지를 설치하고 사용합니다.

여기에는 `uvloop`가 포함되며, 이는 `asyncio`를 고성능으로 대체할 수 있는 드롭인 대체재로, 큰 동시성 성능 향상을 제공합니다.

`pip install "fastapi[standard]"` 같은 방식으로 FastAPI를 설치하면 `uvicorn[standard]`도 함께 설치됩니다.

///

<div class="termy">

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

---> 100%
```

</div>

他の ASGI サーバープログラムでも同様の手順です。

/// tip | 豆知識

`standard` を付けると、Uvicorn は推奨の追加依存関係もインストールして使用します。

その中には、`uvloop` も含まれます。これは `asyncio` の高性能なドロップイン代替で、大きな並行実行性能の向上をもたらします。

`pip install "fastapi[standard]"` のように FastAPI をインストールした場合は、すでに `uvicorn[standard]` も含まれます。

///

## Context

Gradle's public API requires equal access from all JVM-based languages.
Kotlin, Groovy, Java, and other JVM-based languages should be able to use the Gradle API without relying on another language's standard library.

Historically, Gradle has shipped with some Groovy types in very prominent APIs.
This required the Kotlin DSL to add special integration to work with Groovy closures.

                    return new StandardImplForwardingCollection<>(
                        new LinkedList<>(asList(elements)));
                  }
                })
            .named("ForwardingCollection[LinkedList] with standard implementations")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.ALLOWS_NULL_VALUES,
                CollectionFeature.GENERAL_PURPOSE)
            .createTestSuite());

 *
 * <p>Each of the {@code standard} methods, where appropriate, uses the set's comparator (or the
 * natural ordering of the elements, if there is no comparator) to test element equality. As a
 * result, if the comparator is not consistent with equals, some of the standard implementations may
 * violate the {@code Set} contract.
 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be

                    return new StandardImplForwardingSortedMap<>(map);
                  }
                })
            .named(
                "ForwardingSortedMap[SafeTreeMap] with no comparator and standard "
                    + "implementations")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.KNOWN_ORDER,
                MapFeature.ALLOWS_NULL_VALUES,

// just enough to support pprof.
//
// Usage:
//
//	go tool addr2line binary
//
// Addr2line reads hexadecimal addresses, one per line and with optional 0x prefix,
// from standard input. For each input address, addr2line prints two output lines,
// first the name of the function containing the address and second the file:line
// of the source code corresponding to that address.
//

### Simple types { #simple-types }

You can declare all the standard Python types, not only `str`.

You can use, for example:

* `int`
* `float`
* `bool`
* `bytes`

{* ../../docs_src/python_types/tutorial005_py310.py hl[1] *}

### `typing` module { #typing-module }