Таким образом:

```Python
q: Union[str, None] = Query(default=None)
```

...делает параметр необязательным со значением по умолчанию `None`, также как это делает:

```Python

        define(['moment', 'jquery'], function (moment, jquery) {
            if (!jquery.fn) jquery.fn = {}; // webpack server rendering
            if (typeof moment !== 'function' && moment.hasOwnProperty('default')) moment = moment['default']
            return factory(moment, jquery);
        });
    } else if (typeof module === 'object' && module.exports) {
        // Node / Browserify
        //isomorphic issue

	// Supported storage class scheme is EC
	schemePrefix = "EC"

	// Min parity drives
	minParityDrives = 0

	// Default RRS parity is always minimum parity.
	defaultRRSParity = 1
)

// DefaultKVS - default storage class config
var (
	DefaultKVS = config.KVS{
		config.KV{
			Key:   ClassStandard,
			Value: "",
		},
		config.KV{
			Key:   ClassRRS,

- Kube-apiserver: fixes a 1.27+ regression in watch stability by serving watch requests without a resourceVersion from the watch cache by default, as in <1.27 (disabling the change in #115096 by default). This mitigates the impact of an etcd watch bug (https://github.com/etcd-io/etcd/pull/17555). If the 1.27 change in #115096 to serve these requests from underlying storage is still desired despite the impact on watch...

     * @param delegate The delegate that should run on single thread.
     * @param queueSize The event queue size (default {@code 1024}).
     * @param batchMaxSize The maximum batch size delegate should receive (default {@code 500}).
     * @param blockOnLastEvent Should this listener block on last transfer end (completed or corrupted) block? (default {@code true}).
     */
    public SimplexTransferListener(

        lessThan: "10MiB" # match objects with size less than this value (e.g. 10MiB)
        greaterThan: 1MiB # match objects with size greater than this value (e.g. 1MiB)
      purge:
          # retainVersions: 0 # (default) delete all versions of the object. This option is the fastest.
          # retainVersions: 5 # keep the latest 5 versions of the object.
  
    - type: deleted # objects with delete marker as their latest version

	formatZstd
	formatLZ4
	formatS2
	formatBZ2
)

var magicHeaders = []struct {
	header []byte
	f      format
}{
	{
		header: []byte{0x1f, 0x8b, 8},
		f:      formatGzip,
	},
	{
		// Zstd default header.
		header: []byte{0x28, 0xb5, 0x2f, 0xfd},
		f:      formatZstd,
	},
	{
		// Zstd skippable frame header.
		header: []byte{0x2a, 0x4d, 0x18},
		f:      formatZstd,
	},
	{
		// LZ4

)

var schemaCache = &sync.Map{}

func TestConvertToCreateValues_DestType_Slice(t *testing.T) {
	type user struct {
		ID    int `gorm:"primaryKey"`
		Name  string
		Email string `gorm:"default:(-)"`
		Age   int    `gorm:"default:(-)"`
	}

	s, err := schema.Parse(&user{}, schemaCache, schema.NamingStrategy{})
	if err != nil {
		t.Errorf("parse schema error: %v, is not expected", err)
		return
	}
	dest := []*user{

      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9000:9000"
      - "9001:9001"
    depends_on:
      - minio1
      - minio2
      - minio3
      - minio4

## By default this config uses default local driver,
## For custom volumes replace with volume driver configuration.
volumes:
  data1-1:
  data1-2:
  data2-1:
  data2-2:
  data3-1:
  data3-2:
  data4-1:

  /**
   * Stop the service. This method is invoked on the execution thread.
   *
   * <p>By default this method does nothing.
   */
  // TODO: consider supporting a TearDownTestCase-like API
  protected void shutDown() throws Exception {}

  /**
   * Invoked to request the service to stop.
   *
   * <p>By default this method does nothing.
   *