The most common case would be [returning a Response directly as explained later in the advanced docs](../advanced/response-directly.md){.internal-link target=_blank}.

{* ../../docs_src/response_model/tutorial003_02_py39.py hl[8,10:11] *}

This simple case is handled automatically by FastAPI because the return type annotation is the class (or a subclass of) `Response`.

    private static final long serialVersionUID = 1L;
    protected static final Class<?> suppressUnusedImportLocalDateTime = LocalDateTime.class;

    // ===================================================================================
    //                                                                           Attribute

import java.util.TimeZone;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

class ServerMessageBlockTest {

    private TestServerMessageBlock smb;

    // A concrete implementation of the abstract ServerMessageBlock for testing
    private static class TestServerMessageBlock extends ServerMessageBlock {
        private byte[] paramWords;
        private byte[] bytes;

/**
 * Tests for {@link HashBiMap}.
 *
 * @author Mike Bostock
 */
@GwtCompatible
@NullMarked
public class HashBiMapTest extends TestCase {

  @J2ktIncompatible
  @AndroidIncompatible // test-suite builders
  public static final class HashBiMapGenerator extends TestStringBiMapGenerator {
    @Override
    protected BiMap<String, String> create(Entry<String, String>[] entries) {

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

/**
 * The search form for Boost Document.
 */
public class SearchForm {

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

    /**
     * The URL expression field for boost document configuration.
     */

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

/**
 * The search form for Key Match.
 */
public class SearchForm {

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

    /**
     * The search term field for key match configuration.
     */

 */
package org.codelibs.fess.app.web.admin.dict.protwords;

import org.lastaflute.web.validation.Required;

/**
 * The search form for Protected Words.
 */
public class SearchForm {

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

    /**
     * The dictionary ID field for protected words dictionary operations.
     */

 */
package org.codelibs.fess.app.web.admin.elevateword;

/**
 * The download form for Elevate Word.
 * This form is used for downloading elevate word configurations from the admin interface.
 *
 */
public class DownloadForm {

    /**
     * Default constructor.
     */
    public DownloadForm() {
        // Use of default constructor
    }

 */
package org.codelibs.fess.app.web.api.admin.reqheader;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for request header administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }

    /** Request header configuration ID */
    public String id;

 */
package org.codelibs.fess.app.web.api.admin.user;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for user administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }

    /** User ID */
    public String id;