*/
  @Override
  public long longValue() {
    return value;
  }

  /**
   * Returns the value of this {@code UnsignedLong} as a {@code float}, analogous to a widening
   * primitive conversion from {@code long} to {@code float}, and correctly rounded.
   */
  @Override
  public float floatValue() {
    if (value >= 0) {
      return (float) value;
    }

/// check

Also notice that **FastAPI** is smart enough to notice that the path parameter `item_id` is a path parameter and `q` is not, so, it's a query parameter.

///

## Query parameter type conversion { #query-parameter-type-conversion }

You can also declare `bool` types, and they will be converted:

{* ../../docs_src/query_params/tutorial003_py310.py hl[7] *}

In this case, if you go to:

```

import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.validation.CustomSize;
import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Pattern;
import jakarta.validation.constraints.Size;

/**
 * Form class for creating access tokens in the admin interface.

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

import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

/**
 * The edit form for Search List.
 * This form extends CreateForm and adds fields necessary for editing existing search list entries.
 */
public class EditForm extends CreateForm {

 * the conversion uses their millisecond value to create the target object.
 * For other types, the conversion uses the string representation of the source object.
 * </p>
 * <p>
 * If no pattern is specified, the pattern used for conversion depends on the locale as follows:
 * </p>
 * <table border="1">
 * <caption>Conversion Patterns</caption>
 * <tr>
 * <th>Category</th>

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.beans;

/**
 * This interface performs conversion between strings and objects.
 *
 * @author higa
 */
public interface Converter {

    /**
     * Returns the value as a string.
     *
     * @param value
     *            the value

type contentLengthRange struct {
	Min   int64
	Max   int64
	Valid bool // If content-length-range was part of policy
}

// PostPolicyForm provides strict static type conversion and validation for Amazon S3's POST policy JSON string.
type PostPolicyForm struct {
	Expiration time.Time // Expiration date and time of the POST policy.
	Conditions struct {  // Conditional policy structure.

que des vérifications d'erreur, de l'auto-complétion, etc.

///

## <abbr title="aussi appelé sérialisation, ou parfois parsing ou marshalling en anglais">Conversion</abbr> de données

Si vous exécutez cet exemple et allez sur <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a>, vous aurez comme réponse :

```JSON
{"item_id":3}

import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.index.query.RangeQueryBuilder;

/**
 * Command class for handling term range query execution and conversion.
 * This class processes Lucene TermRangeQuery objects and converts them to OpenSearch QueryBuilder instances.
 */
public class TermRangeQueryCommand extends QueryCommand {

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

import org.codelibs.fess.app.web.admin.searchlist.ListForm;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

/**
 * Search request body for search list administration API.
 */
public class SearchBody extends ListForm {

    /**
     * Default constructor.
     */
    public SearchBody() {