import java.lang.annotation.Retention;
import java.lang.annotation.Target;

/**
 * Annotates a "top-level" type-variable usage that takes its nullness from the type argument
 * supplied by the user of the class. For example, {@code Multiset.Entry.getElement()} returns
 * {@code @ParametricNullness E}, which means:
 *
 * <ul>
 *   <li>{@code getElement} on a {@code Multiset.Entry<@NonNull String>} returns {@code @NonNull

 *
 * @param <MESSAGES> the type of user messages used by this validator
 */
public class FessActionValidator<MESSAGES extends UserMessages> extends ActionValidator<MESSAGES> {

    /**
     * Constructs a new FessActionValidator with the specified components.
     *
     * @param requestManager the request manager for handling HTTP requests
     * @param messagesCreator the creator for user messages

}
```

但是你也可以声明多个请求体参数，例如 `item` 和 `user`：

{* ../../docs_src/body_multiple_params/tutorial002_py310.py hl[20] *}

在这种情况下，**FastAPI** 将注意到该函数中有多个请求体参数（两个 Pydantic 模型参数）。

因此，它将使用参数名称作为请求体中的键（字段名称），并期望一个类似于以下内容的请求体：

```JSON
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    },
    "user": {
        "username": "dave",

     * editable flags, user roles, and forum links.
     * </p>
     *
     * @param runtime the action runtime context
     */
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        systemHelper.setupAdminHtmlData(this, runtime);

        final Boolean editable =

  """Get var_name either from env, or user or default.

  If var_name has been set as environment variable, use the preset value, else
  ask for user input. If no input is provided, the default is used.

  Args:
    environ_cp: copy of the os.environ.
    var_name: string for name of environment variable, e.g. "TF_NEED_CUDA".
    ask_for_var: string for how to ask for user input.
    var_default: default value string.

    """
    Create an invoice.

    This will (let's imagine) let the API user (some external developer) create an
    invoice.

    And this path operation will:

    * Send the invoice to the client.
    * Collect the money from the client.
    * Send a notification back to the API user (the external developer), as a callback.
        * At this point is that the API will somehow send a POST request to the

    public static final int OK = 0; // OK
    public static final int ERROR = 1; // "generic" error
    public static final int BAD_OPERATION = 2; // bad user input or alike
    public static final int CANCELED = 3; // user canceled

    public EncryptInvoker(Lookup protoLookup, @Nullable Consumer<LookupContext> contextConsumer) {
        super(protoLookup, contextConsumer);
    }

    @Override

    public static final int OK = 0; // OK
    public static final int ERROR = 1; // "generic" error
    public static final int BAD_OPERATION = 2; // bad user input or alike
    public static final int CANCELED = 3; // user canceled

    public UpgradeInvoker(Lookup protoLookup, @Nullable Consumer<LookupContext> contextConsumer) {
        super(protoLookup, contextConsumer);
    }

    @Override

            logger.debug("replace: {} -> {}", url, newUrl);
        }
        return newUrl;
    }

    /**
     * Checks if the user agent matches the path mapping.
     *
     * @param pathMapping the path mapping
     * @return true if the user agent matches
     */
    protected boolean matchUserAgent(final PathMapping pathMapping) {
        if (!pathMapping.hasUAMathcer()) {
            return true;

```JSON
{
  "detail": "Not authenticated"
}
```

### 非アクティブユーザー { #inactive-user }

今度は非アクティブなユーザーで試してみます。次で認証してください:

User: `alice`

Password: `secret2`

そして `GET` の path `/users/me` を使います。

次のような「Inactive user」エラーになります:

```JSON
{
  "detail": "Inactive user"
}
```

## まとめ { #recap }