val := r.Trailer.Get(t.Key())
		if val != "" {
			w.Header().Set(t.Key(), val)
		}
		return
	}
	w.Header().Set(t.Key(), s)
}

// AddChecksumHeader will transfer any checksum value that has been checked.
func AddChecksumHeader(w http.ResponseWriter, c map[string]string) {
	for k, v := range c {
		if k == xhttp.AmzChecksumType {
			w.Header().Set(xhttp.AmzChecksumType, v)
			continue
		}

     * @return A <code>boolean</code> indicating whether the flag is set.
     */
    public boolean getFlag(final int flag) {
        return (getFlags() & flag) != 0;
    }

    /**
     * Sets or clears the specified flag.
     *
     * @param flag
     *            The flag to set/clear (i.e.,
     *            <code>NTLMSSP_NEGOTIATE_OEM</code>).
     * @param value

 */
package org.apache.maven.artifact.resolver;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;

`bucket1.domain.com` will point to IP address set in `MINIO_PUBLIC_IPS`.

- This field is mandatory for standalone and erasure code MinIO server deployments, to enable federated mode.
- This field is optional for distributed deployments. If you don't set this field in a federated setup, we use the IP addresses of
hosts passed to the MinIO server startup and use them for DNS entries.

* `frozenset`:
    * В запросах и ответах обрабатывается так же, как и `set`:
        * В запросах будет прочитан список, исключены дубликаты и преобразован в `set`.
        * В ответах `set` будет преобразован в `list`.
        * В сгенерированной схеме будет указано, что значения `set` уникальны (с помощью JSON-схемы `uniqueItems`).
* `bytes`:
    * Встроенный в Python `bytes`.

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: set[str] = set()


@app.post("/items/", response_model=Item, status_code=status.HTTP_201_CREATED)
async def create_item(item: Item):

            assertNotNull(message, "Message should not be null");
            // Verify default flags are set
            int expectedFlags =
                    Type2Message.NTLMSSP_NEGOTIATE_NTLM | Type2Message.NTLMSSP_NEGOTIATE_VERSION | Type2Message.NTLMSSP_NEGOTIATE_UNICODE;
            assertEquals(expectedFlags, message.getFlags(), "Default flags should be set correctly");
            assertNull(message.getChallenge(), "Challenge should initially be null");

对具有子类型的模型属性也使用相同的标准语法。

因此，在我们的示例中，我们可以将 `tags` 明确地指定为一个「字符串列表」：

{* ../../docs_src/body_nested_models/tutorial002_py310.py hl[12] *}

## Set 类型

但是随后我们考虑了一下，意识到标签不应该重复，它们很大可能会是唯一的字符串。

Python 具有一种特殊的数据类型来保存一组唯一的元素，即 `set`。

然后我们可以导入 `Set` 并将 `tag` 声明为一个由 `str` 组成的 `set`：

{* ../../docs_src/body_nested_models/tutorial003_py310.py hl[12] *}

这样，即使你收到带有重复数据的请求，这些数据也会被转换为一组唯一项。

而且，每当你输出该数据时，即使源数据有重复，它们也将作为一组唯一项输出。

    /**
     * Stores child URLs from the given set into the crawling queue for future processing.
     * This method filters out blank URLs and increments the depth for child URLs.
     *
     * @param urlQueue the parent URL queue item
     * @param childUrlSet the set of child URLs to be queued for crawling
     */
    protected void storeChildUrlsToQueue(final UrlQueue<?> urlQueue, final Set<RequestData> childUrlSet) {

    return new UndirectedNetworkConnections<>(ImmutableBiMap.copyOf(incidentEdges));
  }

  @Override
  public Set<N> adjacentNodes() {
    return Collections.unmodifiableSet(((BiMap<E, N>) incidentEdgeMap).values());
  }

  @Override
  public Set<E> edgesConnecting(N node) {
    return new EdgesConnecting<>(((BiMap<E, N>) incidentEdgeMap).inverse(), node);
  }