type Buffer struct {
	buf      []byte // contents are the bytes buf[off : len(buf)]
	off      int    // read at &buf[off], write at &buf[len(buf)]
	lastRead readOp // last read operation, so that Unread* can work correctly.

	// Copying and modifying a non-zero Buffer is prone to error,
	// but we cannot employ the noCopy trick used by WaitGroup and Mutex,
	// which causes vet's copylocks checker to report misuse, as vet

	"X-Minio-Replication-Server-Side-Encryption-Iv",
	"X-Minio-Replication-Encrypted-Multipart",
	"X-Minio-Replication-Actual-Object-Size",
	ReplicationSsecChecksumHeader,
	// Add more supported headers here.
}

// mapping of internal headers to allowed replication headers
var validSSEReplicationHeaders = map[string]string{
	"X-Minio-Internal-Server-Side-Encryption-Sealed-Key":     "X-Minio-Replication-Server-Side-Encryption-Sealed-Key",

두 가지 이상의 타입을 포함하는 `Union`으로 응답을 선언할 수 있습니다. 이는 응답이 그 중 하나의 타입일 수 있음을 의미합니다.

OpenAPI에서는 이를 `anyOf`로 정의합니다.

이를 위해 표준 Python 타입 힌트인 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>을 사용할 수 있습니다:

/// note | 참고

          </association>
        </field>
      </fields>
    </class>
    <class>
      <name>Lifecycle</name>
      <version>1.0.0+</version>
      <description>A custom lifecycle mapping definition.</description>
      <fields>
        <field>
          <name>id</name>
          <required>true</required>
          <version>1.0.0+</version>
          <type>String</type>

     * @return The {@link Path} to the artifact, or {@code null} if unavailable.
     */
    @Nullable
    Path getPath(@Nonnull Artifact artifact);

    /**
     * Returns a mapping of artifact coordinates to their corresponding resolution results.
     *
     * @return A {@link Map} where keys are {@link ArtifactCoordinates} and values are {@link ResultItem} instances.
     */
    @Nonnull

	if req.RequestURI != "" {
		parsedURL, err := url.ParseRequestURI(req.RequestURI)
		if err == nil {
			u = parsedURL
		}
	}
	return u
}

// copyURL provides update safe copy by avoiding shallow copying User field
func copyURL(i *url.URL) *url.URL {
	out := *i
	if i.User != nil {
		u := *i.User
		out.User = &u
	}
	return &out
}

// Modify the request to handle the target URL

OpenAPIでは`anyOf`で定義されます。

そのためには、標準的なPythonの型ヒント<a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>を使用します:

{* ../../docs_src/extra_models/tutorial003.py hl[1,14,15,18,19,20,33] *}

## モデルのリスト

同じように、オブジェクトのリストのレスポンスを宣言することができます。

そのためには、標準のPythonの`typing.List`を使用する:

{* ../../docs_src/extra_models/tutorial004.py hl[1,20] *}

			// on the parent user, so we load them. This is not needed for the
			// initial server startup, however, it is needed for the case where
			// the STS account's policy mapping (for example in LDAP mode) may
			// be changed and the user's policy mapping in memory is stale
			// (because the policy change notification was missed by the current
			// server).
			//

   * {@code EnumHashBiMap} or an {@link EnumBiMap}, the new bimap has the same key type as the input
   * bimap. Otherwise, the specified map must contain at least one mapping, in order to determine
   * the key type.
   *
   * @param map the map whose mappings are to be placed in this map
   * @throws IllegalArgumentException if map is not an {@code EnumBiMap} or an {@code EnumHashBiMap}

   * returns an {@code ImmutableSortedMultiset<Multiset<String>>} containing one element (the given
   * multiset itself).
   *
   * <p>Despite the method name, this method attempts to avoid actually copying the data when it is
   * safe to do so. The exact circumstances under which a copy will or will not be performed are
   * undocumented and subject to change.
   *