```Python
from typing import List, Dict
from datetime import date

from pydantic import BaseModel

# Deklarieren Sie eine Variable als ein `str`
# und bekommen Sie Editor-Unterstütung innerhalb der Funktion
def main(user_id: str):
    return user_id


# Ein Pydantic-Modell
class User(BaseModel):
    id: int
    name: str
    joined: date
```

Das kann nun wie folgt verwendet werden:

```Python

    # o generateOutputDirectory: (NotRequired - Default Java:'../src/main/java' CSharp:'../source')
    #  The base output directory for generating.
    #  Basically you don't need to specify this if the project style is as follows:
    #
    #   *Java Project Style
    #     If this value is '../src/main/java' and your project is under the Maven,
    #     you don't need to set up this property!
    #

它也被設計成可作為未來的參考，讓你隨時回來查看所需的內容。

## 運行程式碼

所有程式碼區塊都可以直接複製和使用（它們實際上是經過測試的 Python 檔案）。

要運行任何範例，請將程式碼複製到 `main.py` 檔案，並使用以下命令啟動 `fastapi dev`：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

 [AccessHeadersJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/AccessHeaders.java
 [AccessHeadersKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/AccessHeaders.kt
 [PostStringJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostString.java

/*
 [Test Mail]
*/
subject: [FESS] Test Mail: /*pmb.hostname:orElse('Unknown')*/
>>>

 */

package com.google.common.collect;

import static com.google.common.collect.Maps.transformValues;

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.Function;
import com.google.common.base.Functions;
import java.util.SortedMap;
import org.jspecify.annotations.NullMarked;

/**
 * Tests for {@link Maps#transformValues(SortedMap, Function)}.
 *
 * @author Louis Wasserman
 */

    }

    @Override
    Set<K> createKeySet() {
      @WeakOuter
      final class KeySetImpl extends Maps.KeySet<K, Collection<V>> {
        KeySetImpl() {
          super(AsMap.this);
        }

        @Override
        public boolean removeAll(Collection<?> c) {
          return removeEntriesIf(Maps.<K>keyPredicateOnEntries(in(c)));
        }

        @Override

        // Test successful reading and casting from ASN1InputStream
        ASN1Integer original = new ASN1Integer(456);
        ByteArrayInputStream bais = new ByteArrayInputStream(original.getEncoded());
        ASN1InputStream ais = new ASN1InputStream(bais);
        ASN1Integer result = ASN1Util.as(ASN1Integer.class, ais);
        assertEquals(original, result);
    }

    @Test
    void testAs_ASN1InputStream_Failure() throws IOException {

```
.
├── app
│   ├── __init__.py
│   └── main.py
```

`main.py` 파일 안에 **FastAPI** app 을 만들었습니다:

{* ../../docs_src/app_testing/main.py *}

### 테스트 파일

테스트를 위해 `test_main.py` 라는 파일을 생성할 수 있습니다. 이 파일은 동일한 Python 패키지(즉, `__init__.py` 파일이 있는 동일한 디렉터리)에 위치할 수 있습니다.

``` hl_lines="5"
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

dn: uid=alice1,ou=people,ou=hwengg,dc=min,dc=io
objectClass: inetOrgPerson
cn: Alice Smith
sn: Smith
uid: alice1
mail: ******@****.***
userPassword: {SSHA}Yeh2/IV/q/HjG2yzN3YdE9CAF3EJFCLu

dn: uid=bobfisher,ou=people,ou=hwengg,dc=min,dc=io
objectClass: inetOrgPerson
cn: Robert Fisher
sn: Fisher
uid: bobfisher
mail: ******@****.***
userPassword: {SSHA}LktfbhK5oXSdDWCNzauJ9JA+Poxinl3y

dn: uid=cody3,ou=people,ou=hwengg,dc=min,dc=io