// Should get the last one
        ScriptEngine retrieved = scriptEngineFactory.getScriptEngine("engine");
        assertEquals(engine3, retrieved);
    }

    // Test implementation classes
    private static class TestScriptEngine implements ScriptEngine {
        private final String identifier;

        public TestScriptEngine() {
            this("default");
        }

            public int getType() {
                return type;
            }

            @Override
            public <T> T unwrap(Class<T> type) {
                return null;
            }
        };
    }

    // Mock classes

    static class MockFessConfig extends FessConfig.SimpleImpl {
        @Override
        public String getSmbAvailableSidTypes() {
            return "1,2,4:2,5:1";

Incluso se hicieron algunos cambios en Pydantic para admitir esto.

Las capturas de pantalla anteriores se tomaron con <a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>.

Pero obtendrías el mismo soporte en el editor con <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> y la mayoría de los otros editores de Python:

<img src="/img/tutorial/body/image05.png">

/**
 * Implementation class of {@link BeanDesc}.
 *
 * @author higa
 */
public class BeanDescImpl implements BeanDesc {

    /** Empty object array */
    protected static final Object[] EMPTY_ARGS = new Object[0];

    /** Empty class array */
    protected static final Class<?>[] EMPTY_PARAM_TYPES = new Class<?>[0];

    /** The class of the bean */
    protected final Class<?> beanClass;

 * </ul>
 *
 * <h4>"Interfaces", not implementations</h4>
 *
 * <p>These are classes instead of interfaces to prevent external subtyping, but should be thought
 * of as interfaces in every important sense. Each public class such as {@link ImmutableSet} is a
 * <i>type</i> offering meaningful behavioral guarantees. This is substantially different from the
 * case of (say) {@link HashSet}, which is an <i>implementation</i>, with semantics that were

            fail("Expected NullPointerException");
        } catch (NullPointerException e) {
            // Expected when null listener is set
        }
    }

    // Test helper classes
    private static class TestScriptEngine implements ScriptEngine {
        private String lastScript;
        private Map<String, Object> lastParams;
        private final String prefix;

        public TestScriptEngine() {

        assertTrue(result.contains("Subject with"));
        assertTrue(result.contains("Content with"));
        assertTrue(result.contains("backslash"));
    }

    // Mock classes
    private static class MockFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;

        @Override
        public String getSlackWebhookUrls() {

 *
 * This exception is used to wrap checked ServletExceptions and convert them
 * into unchecked RuntimeExceptions, allowing them to be thrown from methods
 * that don't declare ServletException in their throws clause.
 */
public class ServletRuntimeException extends RuntimeException {

    /** Serial version UID for serialization compatibility. */
    private static final long serialVersionUID = 1L;

    /**

import java.lang.annotation.RetentionPolicy;

/**
 * This annotation tags types that are part of an experimental API.
 * Classes or methods annotated with this annotation may be changed / removed without notice.
 *
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)

///

Ejecuta el ejemplo con:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Revisa

Ve a la documentación interactiva en: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

Verás algo así: