HandleGuid guid = manager.requestDurableHandle("/test/file.txt", HandleType.DURABLE_V2, 120000, null);

        assertEquals(1, manager.getHandleCount());

        manager.releaseHandle("/test/file.txt");

        assertEquals(0, manager.getHandleCount());
        assertNull(manager.getHandleByGuid(guid));
    }

    @Test
    public void testGetHandleByPath() {

## Контекстные менеджеры { #context-managers }

### Что такое «контекстные менеджеры» { #what-are-context-managers }

«Контекстные менеджеры» — это любые объекты Python, которые можно использовать в операторе `with`.

        return "MappingFile [path=" + path + ", mappingItemList=" + mappingItemList + ", id=" + id + "]";
    }

    /**
     * Inner class for handling updates to the character mapping file.
     * This class manages the temporary file creation, writing operations,
     * and atomic updates to ensure data consistency during modifications.
     */
    protected class MappingUpdater implements Closeable {

		*GetUser("delete_slice_with_associations2", Config{Account: true, Pets: 3, Toys: 2, Company: true, Manager: true, Team: 2, Languages: 2, Friends: 3}),
		*GetUser("delete_slice_with_associations3", Config{Account: true, Pets: 2, Toys: 3, Company: true, Manager: true, Team: 3, Languages: 3, Friends: 2}),

### Async Context Manager { #async-context-manager }

Si revisas, la función está decorada con un `@asynccontextmanager`.

Eso convierte a la función en algo llamado un "**async context manager**".

{* ../../docs_src/events/tutorial003_py39.py hl[1,13] *}

## Kontextmanager { #context-managers }

### Was sind „Kontextmanager“ { #what-are-context-managers }

„Kontextmanager“ (Englisch „Context Manager“) sind bestimmte Python-Objekte, die Sie in einer `with`-Anweisung verwenden können.

### Async Context Manager { #async-context-manager }

If you check, the function is decorated with an `@asynccontextmanager`.

That converts the function into something called an "**async context manager**".

{* ../../docs_src/events/tutorial003_py39.py hl[1,13] *}

    private final ConcurrentHashMap<String, Type> usedTypes;

    private final LegacyArtifactHandlerManager manager;

    @Inject
    public DefaultTypeRegistry(Lookup lookup, LanguageRegistry languageRegistry, LegacyArtifactHandlerManager manager) {
        this.lookup = requireNonNull(lookup, "lookup cannot be null");

Directory for DBFlute client

manage.bat(sh) => 21 (jdbc):
A execution command of JDBC task
which gets your schema info and saves it to SchemaXML
located to the "schema" directory.
This task should be executed after ReplaceSchema task
and before other tasks(e.g. Generate, Document task).

manage.bat(sh) => 22 (doc):
A execution command of Document task
which creates documents, for example, SchemaHTML, HistoryHTML
to the "output/doc" directory.

manager = ConnectionManager()


@app.get("/")
async def get():
    return HTMLResponse(html)


@app.websocket("/ws/{client_id}")
async def websocket_endpoint(websocket: WebSocket, client_id: int):
    await manager.connect(websocket)
    try:
        while True:
            data = await websocket.receive_text()