The following arguments are supported:

* `allow_origins` - A list of origins that should be permitted to make cross-origin requests. E.g. `['https://example.org', 'https://www.example.org']`. You can use `['*']` to allow any origin.
* `allow_origin_regex` - A regex string to match against origins that should be permitted to make cross-origin requests. e.g. `'https://.*\.example\.org'`.

// It should never be used directly since buckets are
// distributed deterministically.
// Therefore no cluster locks are required.
var localMetacacheMgr = &metacacheManager{
	buckets: make(map[string]*bucketMetacache),
	trash:   make(map[string]metacache),
}

type metacacheManager struct {
	mu      sync.RWMutex
	init    sync.Once
	buckets map[string]*bucketMetacache
	trash   map[string]metacache // Recently deleted lists.

			if err != nil {
				err = msgp.WrapError(err, "Distribution")
				return
			}
			if cap(z.Distribution) >= int(zb0002) {
				z.Distribution = (z.Distribution)[:zb0002]
			} else {
				z.Distribution = make([]int, zb0002)
			}
			for za0001 := range z.Distribution {
				z.Distribution[za0001], err = dc.ReadInt()
				if err != nil {
					err = msgp.WrapError(err, "Distribution", za0001)
					return
				}
			}

	// Use buffered channel to take care of burst sends or slow w.Write()
	mergeCh := make(chan []byte, globalAPIConfig.getRequestsPoolCapacity()*len(globalEndpoints.Hostnames()))
	localCh := make(chan event.Event, globalAPIConfig.getRequestsPoolCapacity())

	// Convert local messages to JSON and send to mergeCh
	go func() {

When you declare a default value for non-path parameters (for now, we have only seen query parameters), then it is not required.

If you don't want to add a specific value but just make it optional, set the default as `None`.

But when you want to make a query parameter required, you can just not declare any default value:

```Python hl_lines="6-7"
{!../../docs_src/query_params/tutorial005.py!}
```

	cred, seedSignature, region, seedDate, errCode := calculateSeedSignature(req, trailer)
	if errCode != ErrNone {
		return nil, errCode
	}

	if trailer {
		// Discard anything unsigned.
		req.Trailer = make(http.Header)
		trailers := req.Header.Values(awsTrailerHeader)
		for _, key := range trailers {
			req.Trailer.Add(key, "")
		}
	} else {
		req.Trailer = nil
	}
	return &s3ChunkedReader{

		"SecretKey": ui.Credentials.SecretKey,
	}
	if ui.Credentials.IsTemp() {
		copts["SessionToken"] = ui.Credentials.SessionToken
	}

	return &ssh.Permissions{
		CriticalOptions: copts,
		Extensions:      make(map[string]string),
	}, nil
}

func processLDAPAuthentication(key ssh.PublicKey, pass []byte, user string) (perms *ssh.Permissions, err error) {
	var lookupResult *xldap.DNSearchResult
	var targetGroups []string

				OrgNum:    req.Num,
				OrgString: req.String,
				Embedded:  *req,
			}, nil
		}))
		errFatal(err)
	}
	const payloadSize = 512
	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
	payload := make([]byte, payloadSize)
	_, err = rng.Read(payload)
	errFatal(err)

	// Wait for all to connect
	// Parallel writes per server.
	b.Run("bytes", func(b *testing.B) {
		for par := 1; par <= 32; par *= 2 {

  id("com.vanniktech.maven.publish.base")
  id("binary-compatibility-validator")
}

android {
  compileSdk = 34

  namespace = "okhttp.android"

  defaultConfig {
    minSdk = 21

    // Make sure to use the AndroidJUnitRunner (or a sub-class) in order to hook in the JUnit 5 Test Builder
    testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"

    buildFeatures {
      buildConfig = false
    }

    write(out, data, 0, 100, true);
    final File file = out.getFile();
    assertEquals(100, file.length());
    assertTrue(file.exists());
    out.close();

    // Make sure that finalize deletes the file
    out = null;

    // times out and throws RuntimeException on failure
    GcFinalization.awaitDone(
        new GcFinalization.FinalizationPredicate() {
          @Override