b.buf = make([]byte, n, smallBufferSize)
		return 0
	}
	c := cap(b.buf)
	if n <= c/2-m {
		// We can slide things down instead of allocating a new
		// slice. We only need m+n <= c to slide, but
		// we instead let capacity get twice as large so we
		// don't spend all our time copying.
		copy(b.buf, b.buf[b.off:])
	} else if c > maxInt-c-n {
		panic(ErrTooLarge)
	} else {

			"-m", "udp",
			"--sport", "53",
			"-j", "CT",
			"--zone", "1",
		)
	}

	// CLI: -A ISTIO_OUTPUT -p tcp -m mark --mark 0x111/0xfff -j ACCEPT
	//
	// DESC: If this is outbound and has our mark, let it go.
	iptablesBuilder.AppendRule(
		iptableslog.UndefinedCommand, ChainInpodOutput, iptablesconstants.NAT,
		"-p", "tcp",
		"-m", "mark",
		"--mark", inpodTproxyMark,
		"-j", "ACCEPT",
	)

  @GwtIncompatible // used only from suite
  private static ImmutableIntArray makeArray(Integer[] values) {
    return ImmutableIntArray.copyOf(Arrays.asList(values));
  }

  // Test generators.  To let the GWT test suite generator access them, they need to be public named
  // classes with a public default constructor (not that we run these suites under GWT yet).

  @J2ktIncompatible
  @GwtIncompatible // used only from suite

  @GwtIncompatible // used only from suite
  private static ImmutableDoubleArray makeArray(Double[] values) {
    return ImmutableDoubleArray.copyOf(Arrays.asList(values));
  }

  // Test generators.  To let the GWT test suite generator access them, they need to be public named
  // classes with a public default constructor (not that we run these suites under GWT yet).

  @J2ktIncompatible
  @GwtIncompatible // used only from suite

					Name:     "mesh",
					Port:     15008,
					Protocol: gateway.ProtocolType(protocol.HBONE),
				}},
			},
		}

		// only label if the user has provided their own value, otherwise we let istiod choose a default at runtime (service)
		// this will allow for gateway class to provide a default for that class rather than always forcing service or requiring users to configure correctly
		if trafficType != "" {

 *
 * ```java
 * HttpUrl url = HttpUrl.parse("http://who-let-the-dogs.out").newBuilder()
 *     .addPathSegment("_Who?_")
 *     .query("_Who?_")
 *     .fragment("_Who?_")
 *     .build();
 * System.out.println(url);
 * ```
 *
 * This prints:
 *
 * ```
 * http://who-let-the-dogs.out/_Who%3F_?_Who?_#_Who?_
 * ```
 *

          </description>
        </field>
        <field>
          <name>expression</name>
          <version>2.0.0+</version>
          <type>String</type>
          <description>Parameter expression, to let user override default value with a user property, system property or project property.</description>
        </field>
        <field>
          <name>defaultValue</name>
          <version>2.0.0+</version>

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009.py!}
```

Using `Optional[str]` instead of just `str` will let the editor help you detect errors where you could be assuming that a value is always a `str`, when it could actually be `None` too.

`Optional[Something]` is actually a shortcut for `Union[Something, None]`, they are equivalent.

            // to). Our contract promises:
            //
            // 1. not to execute a new callable until the old one has returned
            //
            // If we were to cancel taskFuture, that would let the next task start while the old
            // one is still running.
            //
            // Now, maybe we could tweak our implementation to not start the next task until the

	unlocksFailed := 0
	for lockID := range locks {
		if isLocked(locks[lockID]) {
			unlocksFailed++
		}
	}

	// Unlock failures are higher than tolerance limit
	// for this instance of unlocker, we should let the
	// caller know that lock is not successfully released
	// yet.
	if len(locks)-tolerance == tolerance {
		// In case of split brain scenarios where
		// tolerance is exactly half of the len(*locks)