import { JsonWebKeySet } from '../types';
import { JwksCache } from './jwksCache';
/**
 * Service for fetching and caching JSON Web Key Sets from Azure AD
 */
export declare class JwksService {
    private readonly httpClient;
    private readonly cache;
    private readonly fetchLock;
    constructor(cache?: JwksCache);
    /**
     * Gets JWKS from the specified URI with caching
     * @param jwksUri JWKS URI from OpenID configuration
     * @returns JSON Web Key Set
     */
    getJwksAsync(jwksUri: string): Promise<JsonWebKeySet>;
    /**
     * Gets JWKS for a specific Azure AD tenant
     * @param tenantId Azure AD tenant ID
     * @returns JSON Web Key Set
     */
    getJwksForTenantAsync(tenantId: string): Promise<JsonWebKeySet>;
    /**
     * Fetches JWKS from the specified URI
     * @param uri JWKS URI
     * @returns JSON Web Key Set
     */
    private fetchJwks;
    /**
     * Clears the JWKS cache
     */
    clearCache(): void;
    /**
     * Gets the number of cached JWKS
     */
    get cacheCount(): number;
}
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