from typing import Annotated, Union

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(
    headers: Annotated[CommonHeaders, Header(convert_underscores=False)],
):

import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;

import org.codelibs.core.exception.IORuntimeException;

/**
 * Utility class for {@link Writer} operations.
 *
 * @author koichik
 */
public abstract class WriterUtil {

    /**
     * Do not instantiate.
     */
    protected WriterUtil() {
    }

    /**

import org.codelibs.fess.util.ComponentUtil;

/**
 * Fess-specific crawler configuration that extends OpenSearchCrawlerConfig.
 * This class provides configuration settings for the Fess crawler including
 * index names, shard counts, and replica counts for queue, data, and filter indices.
 */
public class FessCrawlerConfig extends OpenSearchCrawlerConfig {

    /**
     * Default constructor.
     */
    public FessCrawlerConfig() {

import okhttp3.logging.LoggingEventListener
import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.shadows.ShadowLog

@RunWith(RobolectricTestRunner::class)
class AndroidLoggingTest {
  val clientBuilder =
    OkHttpClient.Builder().connectionSpecs(listOf(ConnectionSpec.CLEARTEXT)).dns {
      throw UnknownHostException("shortcircuit")
    }

import jcifs.SmbConstants;
import jcifs.context.SingletonContext;

/**
 * URL handler for transparent smb:// URL handling
 *
 */
public class Handler extends URLStreamHandler {

    private static final Logger log = LoggerFactory.getLogger(Handler.class);
    private CIFSContext transportContext;

    /**
     * Default constructor for SMB URL handler.
     */
    public Handler() {
    }

    /**

import org.junit.Ignore;

/**
 * Base class for list testers.
 *
 * @author George van den Driessche
 */
@GwtCompatible
@NullMarked
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

///

## Benutzerdefinierte Header { #custom-headers }

Beachten Sie, dass benutzerdefinierte proprietäre Header <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">mittels des Präfix `X-`</a> hinzugefügt werden können.

Da **FastAPI** unter der Haube eigentlich **Starlette** ist, mit einer Ebene von mehreren Tools darüber, können Sie Starlettes <a href="https://www.starlette.dev/requests/" class="external-link" target="_blank">`Request`</a>-Objekt direkt verwenden, wenn Sie es benötigen.

///

## Custom Headers { #custom-headers }

Keep in mind that custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the `X-` prefix</a>.

İstek gövdesinde JSON verisi yerine form alanlarını karşılamanız gerketiğinde `Form` sınıfını kullanabilirsiniz.

/// info | Bilgi

Formları kullanmak için öncelikle <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a> paketini indirmeniz gerekmektedir.

Örneğin `pip install python-multipart`.

///

## `Form` Sınıfını Projenize Dahil Edin