```


Note that the commands above attempt to validate if the given entity (user or group) exist in the LDAP directory and return an error if they are not found.

<details><summary> View **DEPRECATED** older policy association commands</summary>

Please **do not use** these as they may be removed or their behavior may change.

```sh

    return None

  print('You have Clang %s installed.\n' % curr_version)
  return curr_version


# Disable clang extension that rejects type definitions within offsetof.
# This was added in clang-16 by https://reviews.llvm.org/D133574.
# Still required for clang-17.
# Can be removed once upb is updated, since a type definition is used within
# offset of in the current version of ubp. See

{!> ../../docs_src/python_types/tutorial009b.py!}
```

////

#### Sử dụng `Union` hay `Optional`

If you are using a Python version below 3.10, here's a tip from my very **subjective** point of view:

Nếu bạn đang sử dụng phiên bản Python dưới 3.10, đây là một mẹo từ ý kiến rất "chủ quan" của tôi:

* 🚨 Tránh sử dụng `Optional[SomeType]`
* Thay vào đó ✨ **sử dụng `Union[SomeType, None]`** ✨.

    //                                                                      Search Execute
    //                                                                      ==============

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        saveToken();
        return asIndexHtml();
    }

    private HtmlResponse asIndexHtml() {

        assertTrue(Integer.toHexString(c), whitespace().matches((char) c));
      }
    }
  }

  // The next tests require ICU4J and have, at least for now, been sliced out
  // of the open-source view of the tests.

  @J2ktIncompatible
  @GwtIncompatible // Character.isISOControl
  public void testJavaIsoControl() {
    for (int c = 0; c <= Character.MAX_VALUE; c++) {
      assertEquals(

	dashboardCmd.PersistentFlags().BoolVar(&browser, "browser", true,
		"When --browser is supplied as false, istioctl dashboard will not open the browser. "+
			"Default is true which means istioctl dashboard will always open a browser to view the dashboard.")

	kiali := kialiDashCmd(cliContext)
	kiali.PersistentFlags().IntVar(&kialiPort, "ui-port", defaultKialiPort, "The component dashboard UI port.")
	dashboardCmd.AddCommand(kiali)

    TreeSet<Integer> mod = Sets.newTreeSet();
    mod.add(1);
    mod.add(2);
    mod.add(3);

    NavigableSet<Integer> unmod = unmodifiableNavigableSet(mod);

    /* Unmodifiable is a view. */
    mod.add(4);
    assertTrue(unmod.contains(4));
    assertTrue(unmod.descendingSet().contains(4));

    ensureNotDirectlyModifiable(unmod);
    ensureNotDirectlyModifiable(unmod.descendingSet());

    }

    private String getLocalizedPagePath(final String page, final String lang, final String country) {
        final StringBuilder buf = new StringBuilder(100);
        buf.append("/WEB-INF/view/").append(page);
        if (StringUtil.isNotBlank(lang)) {
            buf.append('_').append(lang);
            if (StringUtil.isNotBlank(country)) {
                buf.append('_').append(country);
            }

 *           }
 *         });
 * }</pre>
 *
 * <p>The returned cache implements all optional operations of the {@link LoadingCache} and {@link
 * Cache} interfaces. The {@code asMap} view (and its collection views) have <i>weakly consistent
 * iterators</i>. This means that they are safe for concurrent use, but if other threads modify the

   * the returned list is unspecified.
   *
   * <p>The returned list is serializable.
   *
   * @param backingArray the array to back the list
   * @return a list view of the array
   */
  public static List<Character> asList(char... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }
    return new CharArrayAsList(backingArray);
  }