Use `Response.challenges()` to get the schemes and realms of any authentication challenges. When fulfilling a `Basic` challenge, use `Credentials.basic(username, password)` to encode the request header.

=== ":material-language-kotlin: Kotlin"
    ```kotlin
      private val client = OkHttpClient.Builder()
          .authenticator(object : Authenticator {

labels.replacement=Remplacement
labels.sessionId=ID de session
labels.sortOrder=Ordre de tri
labels.updatedBy=Mis à jour par
labels.updatedTime=Date de mise à jour
labels.urls=URL
labels.userAgent=Agent utilisateur
labels.username=Nom d'utilisateur
labels.value=Valeur
labels.versionNo=Numéro de version
labels.cronExpression=Planification
labels.dayForCleanup=Supprimer les documents plus anciens que les jours spécifiés

labels.replacement=Sostituzione
labels.sessionId=ID sessione
labels.sortOrder=Ordine di ordinamento
labels.updatedBy=Aggiornato da
labels.updatedTime=Ora di aggiornamento
labels.urls=URL
labels.userAgent=User-Agent
labels.username=Nome utente
labels.value=Valore
labels.versionNo=Numero di versione
labels.cronExpression=Pianificazione
labels.dayForCleanup=Elimina documenti precedenti alla data specificata

type iamCache struct {
	updatedAt time.Time

	// map of policy names to policy definitions
	iamPolicyDocsMap map[string]PolicyDoc

	// map of regular username to credentials
	iamUsersMap map[string]UserIdentity
	// map of regular username to policy names
	iamUserPolicyMap *xsync.MapOf[string, MappedPolicy]

	// STS accounts are loaded on demand and not via the periodic IAM reload.

	public fun toString ()Ljava/lang/String;
	public final fun topPrivateDomain ()Ljava/lang/String;
	public final fun uri ()Ljava/net/URI;
	public final fun url ()Ljava/net/URL;
	public final fun username ()Ljava/lang/String;
}

public final class okhttp3/HttpUrl$Builder {
	public fun <init> ()V
	public final fun addEncodedPathSegment (Ljava/lang/String;)Lokhttp3/HttpUrl$Builder;

labels.regex=정규 표현식
labels.regularName=정규 이름
labels.replacement=치환
labels.sessionId=세션 ID
labels.sortOrder=표시 순서
labels.updatedBy=갱신자
labels.updatedTime=갱신 시간
labels.urls=URL
labels.userAgent=사용자 에이전트
labels.username=사용자명
labels.value=값
labels.versionNo=버전 번호
labels.cronExpression=스케줄
labels.dayForCleanup=지정일 이전 문서 삭제
labels.crawlingThreadCount=동시 크롤링 수
labels.boost=부스트 값
labels.crawlingConfigName=이름

labels.replacement=Vervanging
labels.sessionId=Sessie-ID
labels.sortOrder=Sorteervolgorde
labels.updatedBy=Bijgewerkt door
labels.updatedTime=Bijgewerkt op
labels.urls=URL's
labels.userAgent=User-Agent
labels.username=Gebruikersnaam
labels.value=Waarde
labels.versionNo=Versienummer
labels.cronExpression=Planning
labels.dayForCleanup=Documenten ouder dan de opgegeven datum verwijderen
labels.crawlingThreadCount=Aantal gelijktijdige crawls

labels.port=端口
labels.regex=正则表达式
labels.regularName=常规名称
labels.replacement=替换
labels.sessionId=会话ID
labels.sortOrder=排序顺序
labels.updatedBy=更新者
labels.updatedTime=更新时间
labels.urls=URL
labels.userAgent=用户代理
labels.username=用户名
labels.value=值
labels.versionNo=版本号
labels.cronExpression=计划
labels.dayForCleanup=删除指定日期之前的文档
labels.crawlingThreadCount=同时爬网数
labels.boost=提升值
labels.crawlingConfigName=名称
labels.crawlingConfigPath=要爬网的路径

ueue_dir","value":""}]},"notify_elasticsearch":{"_":[{"key":"enable","value":"off"},{"key":"url","value":""},{"key":"format","value":"namespace"},{"key":"index","value":""},{"key":"queue_dir","value":""},{"key":"queue_limit","value":"0"},{"key":"username","value":""},{"key":"password","value":""}]},"notify_kafka":{"_":[{"key":"enable","value":"off"},{"key":"topic","value":""},{"key":"brokers","value":""},{"key":"sasl_username","value":""},{"key":"sasl_password","value":""},{"key":"sasl_mechanism...

    from fastapi import APIRouter, FastAPI

    app = FastAPI()
    router = APIRouter()


    @router.get("/users/", tags=["users"])
    async def read_users():
        return [{"username": "Rick"}, {"username": "Morty"}]


    app.include_router(router)
    ```
    """

    def __init__(
        self,
        *,