* checked for emptiness is subject to change. We currently check {@code CharSequence}s, {@code
     * Collection}s, {@code Map}s, optionals (including Guava's), and arrays.
     *
     * @since 33.4.0
     */
    @CanIgnoreReturnValue
    public ToStringHelper omitEmptyValues() {
      omitEmptyValues = true;
      return this;
    }

    /**

        assertEquals(0, c2.compareTo(c1), "expected " + v2 + " == " + v1);
    }

    private void checkVersionsArrayEqual(String[] array) {
        // compare against each other (including itself)
        for (int i = 0; i < array.length; ++i) {
            for (int j = i; j < array.length; ++j) {
                checkVersionsEqual(array[i], array[j]);
            }
        }
    }

//       purge:
//           # retainVersions: 0 # (default) delete all versions of the object. This option is the fastest.
//           # retainVersions: 5 # keep the latest 5 versions of the object including delete markers.
//
//   notify:
//     endpoint: https://notify.endpoint # notification endpoint to receive job completion status
//     token: Bearer xxxxx # optional authentication token for the notification endpoint
//

    private final ClassLoader loader;
    private final ExpressionEvaluator evaluator;
    private final ConfigurationListener listener;

    /**
     * Holds information about a method including its parameter type.
     */
    private record MethodInfo(Method method, Type parameterType) {}

    public EnhancedCompositeBeanHelper(

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Unit tests for the {@link CompatibilityFixStrategy} class.
 * Tests Maven 4 compatibility fixes including duplicate dependency and plugin handling.
 */
@DisplayName("CompatibilityFixStrategy")
class CompatibilityFixStrategyTest {

    private CompatibilityFixStrategy strategy;

    @BeforeEach
    void setUp() {

                  concreteClass ->
                      ImmutableSet.copyOf(TypeToken.of(concreteClass).getTypes().rawTypes())));

  /**
   * Flattens a class's type hierarchy into a set of {@code Class} objects including all
   * superclasses (transitively) and all interfaces implemented by these superclasses.
   */
  @VisibleForTesting
  static ImmutableSet<Class<?>> flattenHierarchy(Class<?> concreteClass) {

    //                                                                               Hook
    //                                                                              ======
    /**
     * Sets up HTML data for rendering, including help link.
     *
     * @param runtime the action runtime
     */
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);

import jcifs.smb.SID;

/**
 * Contains user logon information from a PAC (Privilege Attribute Certificate).
 * This class parses and provides access to user authentication and authorization
 * data from Kerberos tickets, including user identity, group memberships, and
 * logon metadata.
 */
public class PacLogonInfo {

    private Date logonTime;
    private Date logoffTime;
    private Date kickOffTime;
    private Date pwdLastChangeTime;

/// tip

This is just standard Python, it's called a "type alias", it's actually not specific to **FastAPI**.

But because **FastAPI** is based on the Python standards, including `Annotated`, you can use this trick in your code. 😎

///

<img src="/img/tutorial/path-params/image02.png">

The same way, there are many compatible tools. Including code generation tools for many languages.

## Pydantic { #pydantic }