*
         * - if Unsafe is removed entirely from JDKs (or already absent in some unusual environment
         * today). TODO: b/392974826 - Check for the existence of Unsafe and its methods
         * reflectively before attempting to access UnsafeComparator. Or, better yet, allow
         * UnsafeComparator to still initialize correctly even if Unsafe is unavailable. This would

{* ../../docs_src/body_updates/tutorial002_py310.py hl[32] *}

### Uso del parámetro `update` de Pydantic { #using-pydantics-update-parameter }

Ahora, puedes crear una copia del modelo existente usando `.model_copy()`, y pasar el parámetro `update` con un `dict` que contenga los datos a actualizar.

Como `stored_item_model.model_copy(update=update_data)`:

{* ../../docs_src/body_updates/tutorial002_py310.py hl[33] *}

{* ../../docs_src/body_updates/tutorial002_py310.py hl[32] *}

### Usando o parâmetro `update` do Pydantic { #using-pydantics-update-parameter }

Agora, você pode criar uma cópia do modelo existente usando `.model_copy()`, e passar o parâmetro `update` com um `dict` contendo os dados para atualizar.

Como `stored_item_model.model_copy(update=update_data)`:

{* ../../docs_src/body_updates/tutorial002_py310.py hl[33] *}

        testDelete();
    }

    @Test
    void testStartJob_notFound() {
        // Try to start a non-existent job
        checkPutMethod(new HashMap<>(), "invalid_scheduler_id_12345/start").then().body("response.status", equalTo(1));
    }

    @Test
    void testStopJob_notFound() {
        // Try to stop a non-existent job
        checkPutMethod(new HashMap<>(), "invalid_scheduler_id_12345/stop").then().body("response.status", equalTo(1));

    public void test_get_nullProperty() {
        // Test getting non-existent property
        try {
            fessConfig.get("non.existent.property");
            fail("Should throw exception for non-existent property");
        } catch (ConfigPropertyNotFoundException e) {
            // Expected exception
            assertTrue(e.getMessage().contains("non.existent.property"));
        }
    }

            }
        };

        try {
            emptyEnv.get("non.existent.property");
            fail("Should throw ConfigPropertyNotFoundException");
        } catch (ConfigPropertyNotFoundException e) {
            assertTrue(e.getMessage().contains("non.existent.property"));
        }

        try {
            emptyEnv.is("non.existent.boolean");
            fail("Should throw ConfigPropertyNotFoundException");

                "Status code should be 200, 400 or 500, but was " + statusCode);
    }

    @Test
    void testDownload_notFound() {
        // Try to download a non-existent file
        Response response =
                given().header("Authorization", getTestToken()).when().get(getApiPath() + "/download/nonexistent_file_12345.txt");

        int statusCode = response.getStatusCode();

        execJob.testAddSystemProperty(cmdList, "non.existent.property", "default.value", null);
        assertEquals(1, cmdList.size());
        assertEquals("-Dnon.existent.property=default.value", cmdList.get(0));

        // Test with property that doesn't exist and no default value
        cmdList.clear();
        execJob.testAddSystemProperty(cmdList, "another.non.existent", null, null);
        assertEquals(0, cmdList.size());

        }
    }

    // Test getScriptEngine with non-existent name
    @Test
    public void test_getScriptEngine_nonExistentName() {
        try {
            scriptEngineFactory.getScriptEngine("nonexistent");
            fail("Should throw ScriptEngineException for non-existent engine");
        } catch (ScriptEngineException e) {

        assertEquals(123, dataStoreParams.get("key2"));

        dataStoreParams.put("key3", null);
        assertNull(dataStoreParams.get("key3"));
    }

    // Test get for non-existent key
    @Test
    public void test_getNonExistentKey() {
        assertNull(dataStoreParams.get("nonexistent"));
    }

    // Test getAsString with String value
    @Test