*/
public class ToolchainFactoryException extends MavenException {

    public ToolchainFactoryException(String message) {
        super(message);
    }

    public ToolchainFactoryException(String message, Throwable cause) {
        super(message, cause);
    }

    public ToolchainFactoryException(Throwable cause) {
        super(cause);
    }

from fastapi.security import APIKeyHeader
from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()

api_key = APIKeyHeader(name="key", auto_error=False)


class User(BaseModel):
    username: str


def get_current_user(oauth_header: Optional[str] = Security(api_key)):
    if oauth_header is None:
        return None
    user = User(username=oauth_header)
    return user

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

class VersionedSettingsBranchTest {
    @ParameterizedTest
    @CsvSource(
        value = [
            "master,    0",
            "release,   1",
            "release6x, 2",
            "release7x, 3",

    get() = when (this) {
        is JApiClass -> this
        is JApiField -> this.getjApiClass()
        is JApiBehavior -> this.getjApiClass()
        else -> error("Unsupported japicmp member type '${this::class}'")
    }


internal
val JApiClass.isKotlin: Boolean
    get() = newClass.orElse(null)?.isKotlin ?: false


internal
val JApiClass.simpleName: String

import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.smb.SID;
import jcifs.smb.SmbException;

/**
 * Test class for ACE (Access Control Entry)
 */
class ACETest {

    private ACE ace;
    private byte[] testBuffer;

    @BeforeEach
    void setUp() {
        ace = new ACE();
    }

    @Test

import org.eclipse.aether.util.repository.AuthenticationBuilder;

/**
 * <strong>Warning:</strong> This is an internal utility class that is only public for technical reasons, it is not part
 * of the public API. In particular, this class can be changed or deleted without prior notice.
 *
 */
public class RepositoryUtils {

    private static String nullify(String string) {
        return (string == null || string.isEmpty()) ? null : string;

如上文所述，这是 **FastAPI** 中使用的默认响应。

### `ORJSONResponse`

如上文所述，`ORJSONResponse` 是一个使用 <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> 的快速的可选 JSON 响应。


### `UJSONResponse`

`UJSONResponse` 是一个使用 <a href="https://github.com/ultrajson/ultrajson" class="external-link" target="_blank">`ujson`</a> 的可选 JSON 响应。

/// warning | 警告

在处理某些边缘情况时，`ujson` 不如 Python 的内置实现那么谨慎。

///

## 运行

/// info | 说明

先安装 <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>。

安装命令： `pip install python-multipart`。

这是因为 **OAuth2** 使用**表单数据**发送 `username` 与 `password`。

///

用下面的命令运行该示例：

<div class="termy">

```console
$ uvicorn main:app --reload

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * This package contain support (mostly abstract) classes, that implement "base" of CLIng.
 * In packages below you find actual implementations.
 *
 * Hierarchy:
 * <ul>

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: float = 10.5


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The Bar fighters", "price": 62, "tax": 20.2},
    "baz": {
        "name": "Baz",