But in most of the cases where we need to do something like this, we want the model just to **filter/remove** some of the data as in this example.

And in those cases, we can use classes and inheritance to take advantage of function **type annotations** to get better support in the editor and tools, and still get the FastAPI **data filtering**.

{* ../../docs_src/response_model/tutorial003_01_py310.py hl[7:10,13:14,18] *}

            return SearchResult.create().build();
        }
    }

    /**
     * Extended searcher for testing inheritance.
     */
    static class ExtendedTestSearcher extends TestSearcher {
        @Override
        protected SearchResult search(String query, SearchRequestParams params, OptionalThing<FessUserBean> userBean) {

    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>

            method.setAccessible(true);
            assertEquals(443, method.invoke(testHandler));
        }

        @Test
        @DisplayName("Should maintain inheritance hierarchy")
        void testInheritanceHierarchy() {
            // When
            Class<?> superclass = Handler.class.getSuperclass();

            // Then

            assertArrayEquals(bufferCopy, originalBuffer);
        }
    }

    /**
     * Test inheritance from ServerMessageBlock
     */
    @Test
    @DisplayName("Test inheritance from ServerMessageBlock")
    public void testInheritance() {
        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);

        // Then

     */
    public static final File tmpDir = new File(System.getProperty("java.io.tmpdir"));

    /**
     * Protected constructor to prevent direct instantiation but allow inheritance.
     */
    protected Curl() {
        // nothing
    }

    /**
     * Creates a new CurlRequest with the HTTP GET method for the specified URL.
     *
     * @param url the URL to send the GET request to

        assertNull(exception.getMessageCode());
    }

    @Test
    public void test_inheritanceFromFessSystemException() {
        // Setup
        final String message = "Test inheritance";
        final VaMessenger<FessMessages> messageCode = messages -> messages.addErrorsSsoLoginError(UserMessages.GLOBAL_PROPERTY_KEY);

        // Execute

        } catch (Exception e) {
            fail("Should have caught DataStoreException");
        }
    }

    @Test
    public void test_inheritance() {
        // Test inheritance hierarchy
        DataStoreException exception = new DataStoreException("Test");

        assertTrue(exception instanceof DataStoreException);
        assertTrue(exception instanceof FessSystemException);

 * entire "chunk" (of implementation-dependent length) is ready to be hashed.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 */
// TODO(kevinb): this class still needs some design-and-document-for-inheritance love
abstract class AbstractStreamingHasher extends AbstractHasher {
  /** Buffer via which we pass data to the hash algorithm (the implementor) */
  private final ByteBuffer buffer;

        }

        @Test
        @DisplayName("Should handle response as part of ServerMessageBlock2")
        void testAsServerMessageBlock2Response() {
            // Verify inheritance
            assertTrue(response instanceof ServerMessageBlock2);

            // Verify command can be retrieved from parent
            assertEquals(0, response.getCommand());
        }

        @Test