rules := make(Rules)
	rules.Add(pattern, targetID)

	for _, eventName := range eventNames {
		for _, name := range eventName.Expand() {
			rulesMap[name] = rulesMap[name].Union(rules)
		}
	}
}

// Clone - returns copy of this rules map.
func (rulesMap RulesMap) Clone() RulesMap {
	rulesMapCopy := make(RulesMap)

	for eventName, rules := range rulesMap {

 *
 * This implementation's STD3 rules are configured to `UseSTD3ASCIIRules=false`. This is
 * permissive and permits the `_` character.
 *
 * [mapping table]: https://www.unicode.org/reports/tr46/#IDNA_Mapping_Table
 * [mapping step]: https://www.unicode.org/reports/tr46/#ProcessingStepMap
 */
class SimpleIdnaMappingTable internal constructor(
  internal val mappings: List<Mapping>,
) {
  /**

        assertEquals(original.size(), decoded.size());
        assertEquals(original.getFileInformationLevel(), decoded.getFileInformationLevel());
    }

    @Test
    @DisplayName("Test with Unicode filename")
    void testWithUnicodeFilename() {
        String unicodeFileName = "文件名.txt";
        FileRenameInformation2 info = new FileRenameInformation2(unicodeFileName, false);

        // Body with unicode characters
        String unicodeBody = "{\"message\":\"こんにちは世界\"}";
        request.body(unicodeBody);

        assertEquals(unicodeBody, request.body());
    }

    @Test
    public void testParamWithUnicodeCharacters() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        // Param with unicode characters

Lo importante a tener en cuenta es que la clave `sub` debería tener un identificador único a lo largo de toda la aplicación, y debería ser un string.

## Revisa { #check-it }

     */
    int FLAGS2_PERMIT_READ_IF_EXECUTE_PERM = 0x2000;
    /**
     * Use 32-bit status codes flag.
     */
    int FLAGS2_STATUS32 = 0x4000;
    /**
     * Strings are Unicode flag.
     */
    int FLAGS2_UNICODE = 0x8000;

    /**
     * No capabilities.
     */
    int CAP_NONE = 0x0000;
    /**
     * Raw mode transfers are supported capability.
     */

        assertEquals(0, result);
    }

    /**
     * Test writeBytesWireFormat.
     */
    @Test
    void testWriteBytesWireFormat() {
        // Assuming path is ASCII and does not use unicode
        String dirName = "\testDir";
        SmbComDeleteDirectory sdd = new SmbComDeleteDirectory(dirName);
        sdd.useUnicode = false;
        // format byte + path + null terminator

由于我们必须用 `Query(default=None)` 替换默认值 `None`，`Query` 的第一个参数同样也是用于定义默认值。

所以：

```Python
q: Union[str, None] = Query(default=None)
```

...使得参数可选，等同于：

```Python
q: str = None
```

但是 `Query` 显式地将其声明为查询参数。

然后，我们可以将更多的参数传递给 `Query`。在本例中，适用于字符串的 `max_length` 参数：

```Python
q: Union[str, None] = Query(default=None, max_length=50)
```

将会校验数据，在数据无效时展示清晰的错误信息，并在 OpenAPI 模式的*路径操作*中记录该参​​数。

```

////

//// tab | Python 3.9+

```Python
q: Union[str, None] = None
```

////

O que faremos é envolver isso com `Annotated`, para que fique assim:

//// tab | Python 3.10+

```Python
q: Annotated[str | None] = None
```

////

//// tab | Python 3.9+

```Python
q: Annotated[Union[str, None]] = None
```

////

* `main.py` adında bir dosya oluşturup içine şu kodu yapıştıralım:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

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