from typing import Annotated, Union

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(user_agent: Annotated[Union[str, None], Header()] = None):

 *
 * @param <MESSAGES> the type of user messages used by this validator
 */
public class FessActionValidator<MESSAGES extends UserMessages> extends ActionValidator<MESSAGES> {

    /**
     * Constructs a new FessActionValidator with the specified components.
     *
     * @param requestManager the request manager for handling HTTP requests
     * @param messagesCreator the creator for user messages

 * and NtlmAuthenticator</a> for complete details.
 */

/**
 * An abstract class for NTLM authentication.
 * Provides a callback mechanism for retrieving user credentials when authentication is required.
 */
public abstract class NtlmAuthenticator {

    /**
     * Default constructor.
     */
    protected NtlmAuthenticator() {

///

It will:

* Return that status code in the response.
* Document it as such in the OpenAPI schema (and so, in the user interfaces):

<img src="/img/tutorial/response-status-code/image01.png">

/// note

Some response codes (see the next section) indicate that the response does not have a body.

<inherits name="com.google.common.math.Math" />
<inherits name="com.google.common.util.concurrent.Concurrent" />
<inherits name="com.google.gwt.core.Core" />
<inherits name="com.google.gwt.user.User" />

		return
	}

	if GlobalKMS == nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL)
		return
	}

	keyID := r.Form.Get("key-id")

	// Ensure policy allows the user to create this key name
	cred, owner, s3Err := validateAdminSignature(ctx, r, "")
	if s3Err != ErrNone {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

    assertThat(request.url.toString()).isEqualTo("http://example.com/")
    assertThat(request.header("User-Agent")).isEqualTo("foo")
    assertThat(request.body).isNull()
  }

  @Test
  fun defaultUserAgent() {
    val request = fromArgs("http://example.com").createRequest()
    assertThat(request.header("User-Agent")!!).startsWith("okcurl/")
  }

  @Test
  fun headerSplitWithDate() {
    val request =

    /**
     * Gets the hint about the source of the problem. While the syntax of this hint is unspecified and depends on the
     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *

from typing import Optional

from pydantic import BaseModel


class User(BaseModel):
    name: str

     * This method determines the preference value based on user roles, session information, or request parameters.
     *
     * @param searchRequestBuilder the search request builder to configure
     * @param userBean the optional user bean containing user information
     * @param query the search query string
     */