For example, as in the `Image` model we have a `url` field, we can declare it to be an instance of Pydantic's `HttpUrl` instead of a `str`:

{* ../../docs_src/body_nested_models/tutorial005_py310.py hl[2,8] *}

The string will be checked to be a valid URL, and documented in JSON Schema / OpenAPI as such.

          "exemplar": true,
          "expr": "minio_bucket_replication_proxied_head_requests_failures{job=~\"$scrape_jobs\"}",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{instance}}",
          "refId": "A"
        }
      ],
      "title": "Total Failed Proxied Head Requests",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",

  }

  /*
   * TODO(cpovirk): more testing of subSet/headSet/tailSet/descendingSet? and/or generate derived
   * suites?
   */

  /**
   * Returns the {@link Method} instances for the test methods in this class that create a set with
   * a "hole" in it so that set tests of {@code ContiguousSet} can suppress them with {@code
   * FeatureSpecificTestSuiteBuilder.suppressing()}.
   */
  /*

 * including failure URL tracking and crawler statistics integration.
 */
public class CrawlerLogHelper extends LogHelperImpl {

    /**
     * Creates a new instance of CrawlerLogHelper.
     */
    public CrawlerLogHelper() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(CrawlerLogHelper.class);

    @Override

 *
 *
 *  * Applications can use the methods <code>getLocalHost</code>,
 * <code>getByName</code>, and
 * <code>getAllByAddress</code> to create a new NbtAddress instance. This
 * class is symmetric with {@link java.net.InetAddress}.
 *
 *
 *  * <b>About NetBIOS:</b> The NetBIOS name
 * service is a dynamic distributed service that allows hosts to resolve

        return BadWord.class;
    }

    // ===================================================================================
    //                                                                     Object Instance
    //                                                                     ===============
    @Override
    public Entity newEntity() {
        return new BadWord();
    }

        return BoostDocumentRule.class;
    }

    // ===================================================================================
    //                                                                     Object Instance
    //                                                                     ===============
    @Override
    public Entity newEntity() {
        return new BoostDocumentRule();
    }

 */
public class FileAuthPager implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * Default constructor for file authentication pager.
     * Creates a new instance with default values.
     */
    public FileAuthPager() {
        // Default constructor
    }

    /** The default number of records to display per page. */
    public static final int DEFAULT_PAGE_SIZE = 20;

    int getType();

    /**
     * Unwraps this SID to the specified type.
     *
     * @param <T> the type to unwrap to
     * @param type the class of the type to unwrap to
     * @return unwrapped instance
     */
    <T> T unwrap(Class<T> type);

 * This class provides methods for converting binary data to readable hex format.
 */

public class Hexdump {

    /**
     * Default constructor.
     */
    public Hexdump() {
        // Utility class - no instance variables to initialize
    }

    /**
     * Array of hexadecimal digit characters used for converting binary data to hex representation.
     */