### Python 3.10에서 `Union`

위의 예제에서는 `response_model` 인자 값으로 `Union[PlaneItem, CarItem]`을 전달합니다.

이 경우, 이를 **타입 어노테이션(type annotation)** 이 아닌 **인자 값(argument value)** 으로 전달하고 있기 때문에 Python 3.10에서도 `Union`을 사용해야 합니다.

만약 타입 어노테이션에 사용한다면, 다음과 같이 수직 막대(|)를 사용할 수 있습니다:

```Python
some_variable: PlaneItem | CarItem
```

    Feature<?>[] presentFeatures;
    Feature<?>[] absentFeatures;
    try {
      presentFeatures = (Feature<?>[]) annotationClass.getMethod("value").invoke(testerAnnotation);
      absentFeatures = (Feature<?>[]) annotationClass.getMethod("absent").invoke(testerAnnotation);
    } catch (Exception e) {

      // code should be unreachable with correctly implemented Futures.
      // Cancel this future and return.
      // At this point, inputFuture is cancelled and outputFuture doesn't exist, so the value of
      // mayInterruptIfRunning is irrelevant.
      cancel(false);
      return;
    } catch (ExecutionException e) {
      // Set the cause of the exception as this future's exception.

        assertEquals(((netdfs.DfsEnumArray1) info.e).s[0].entry_path, ((netdfs.DfsEnumArray1) decodedEnumEx.info.e).s[0].entry_path);
        assertEquals(totalentries.value, decodedEnumEx.totalentries.value);
    }

    @Test
    void testNetrDfsEnumEx_EncodeInDecodeOut_NullInfoAndTotalEntries() throws NdrException {
        String dfsName = "test_dfs_nulls";
        int level = 1;

     */
    public void running() {}

    /**
     * Called when the service transitions to the {@linkplain State#STOPPING STOPPING} state. The
     * only valid values for {@code from} are {@linkplain State#STARTING STARTING} or {@linkplain
     * State#RUNNING RUNNING}. This occurs when {@link Service#stopAsync} is called.
     *

        TestTransformer transformer = new TestTransformer();
        assertNotNull(transformer);
        assertNull(transformer.getName());
    }

    /**
     * Test getName and setName with normal values
     */
    public void test_name_getterSetter() {
        // Initial state
        assertNull(testTransformer.getName());

        // Set name
        testTransformer.setName("testTransformer");

        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        final AtomicInteger errorCount = new AtomicInteger(0);

        // Set initial values
        testRule.setRuleId("concurrentRule");
        TestResponseProcessor processor = new TestResponseProcessor();
        testRule.setResponseProcessor(processor);

        for (int i = 0; i < threadCount; i++) {

						<ant antfile="${basedir}/module.xml" target="install.modules">
							<property name="with.fess" value="true" />
							<property name="opensearch.version" value="${opensearch.version}" />
						</ant>
						<ant antfile="${basedir}/plugin.xml" target="install.plugins">
							<property name="with.fess" value="true" />
						</ant>
						<ant antfile="deps.xml" target="install.jars" />

     * @param reading     The reading of the word.
     * @param tags        The tags associated with the word.
     * @param permissions The permissions for the word.
     * @param boost       The boost value for the word.
     * @param apply       true to apply the changes immediately.
     */
    public void addElevateWord(final String word, final String reading, final String[] tags, final String[] permissions, final Float boost,

var bucketMetadataOpIgnoredErrs = append(bucketOpIgnoredErrs, errVolumeNotFound)

// OfflineDisk represents an unavailable disk.
var OfflineDisk StorageAPI // zero value is nil

// erasureObjects - Implements ER object layer.
type erasureObjects struct {
	setDriveCount      int
	defaultParityCount int

	setIndex  int
	poolIndex int

	// getDisks returns list of storageAPIs.