},
                        "tax": {"title": "Tax", "type": "number", "default": 10.5},
                        "tags": {
                            "title": "Tags",
                            "type": "array",
                            "items": {"type": "string"},
                            "default": [],
                        },
                    },
                },

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.dict;

/**
 * The list form for Dictionary.
 *
 */
public class ListForm {
    /**
     * Default constructor.
     */
    public ListForm() {
        // do nothing
    }

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)
```

import org.codelibs.fess.app.pager.SearchLogPager;
import org.codelibs.fess.util.ComponentUtil;

/**
 * The search form for Search Log.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The log type field for filtering search logs.
     */
    public String logType;

    /**

/**
 * This class provides default values for all Java types, as defined by the JLS.
 *
 * @author Ben Yu
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
public final class Defaults {
  private Defaults() {}

  private static final Double DOUBLE_DEFAULT = 0d;
  private static final Float FLOAT_DEFAULT = 0f;

  /**

    /** Array of styles held by {@link DateFormat}. */
    protected static final int[] STYLES = new int[] { SHORT, MEDIUM, LONG, FULL };

    /**
     * Returns the pattern string for {@link DateFormat#SHORT} style in the default locale.
     *
     * @return the pattern string for {@link DateFormat#SHORT} style
     */
    public static String getShortPattern() {
        return getShortPattern(LocaleUtil.getDefault());
    }

     * security. ECDSA keys are noticeably faster than RSA keys.
     *
     * This is the default configuration and has been since this API was introduced in OkHttp
     * 3.11.0. Note that the default may change in future releases.
     */
    fun ecdsa256() =
      apply {
        keyAlgorithm = "EC"
        keySize = 256
      }

    /**

                """
            ),
        ] = None,
        auto_error: Annotated[
            bool,
            Doc(
                """
                By default, if no HTTP Authorization header is provided, required for
                OAuth2 authentication, it will automatically cancel the request and
                send the client an error.

				err = msgp.WrapError(err, "Owner")
				return
			}
		case "Quorum":
			z.Quorum, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "Quorum")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable

		console.Printf(format, data...)
	}
}

const (
	// dRWMutexAcquireTimeout - default tolerance limit to wait for lock acquisition before.
	drwMutexAcquireTimeout = 1 * time.Second // 1 second.

	// dRWMutexRefreshTimeout - default timeout for the refresh call
	drwMutexRefreshCallTimeout = 5 * time.Second

	// dRWMutexUnlockTimeout - default timeout for the unlock call
	drwMutexUnlockCallTimeout = 30 * time.Second