import { Agent as HttpAgent } from 'http';
import { Agent as HttpsAgent } from 'https';
export interface Headers {
    [key: string]: string;
}
export interface Options {
    jwksUri: string;
    rateLimit?: boolean;
    cache?: boolean;
    cacheMaxEntries?: number;
    cacheMaxAge?: number;
    jwksRequestsPerMinute?: number;
    proxy?: string;
    requestHeaders?: Headers;
    timeout?: number;
    requestAgent?: HttpAgent | HttpsAgent;
    fetcher?(jwksUri: string): Promise<{
        keys: any;
    }>;
    getKeysInterceptor?(): Promise<JSONWebKey[]>;
}
export interface JSONWebKey {
    kid: string;
    alg: string;
    [key: string]: any;
}
/**
 * Create a function to retreive the RSA public key from a JWKS endpoint based on the kid of
 * the given JWT header.
 *
 * @export
 * @param {Options} options - Options of the jwks-rsa package.
 * @returns {(header: any, payload: any) => Promise<string>} The returned function.
 */
export declare function getRSAPublicKeyFromJWKS(options: Options): (header: any, payload: any) => Promise<string>;