declare const randomHex: (n?: number) => string;
declare const getCodeVerifier: (length?: number) => Promise<string>;
declare const getCodeChallenge: (verifier: string) => Promise<string>;
declare const verifyCodeChallenge: (codeVerifier: string, codeChallenge: string) => Promise<boolean>;
declare class PKCECodeGenerator {
    static readonly code: (length?: number) => Promise<string>;
    static readonly challenge: (verifier: string) => Promise<string>;
    static readonly verify: (codeVerifier: string, codeChallenge: string) => Promise<boolean>;
    static codes(length?: number): Promise<{
        verifier: string;
        challenge: string;
        verify: () => Promise<boolean>;
    }>;
}

export { PKCECodeGenerator, getCodeChallenge, getCodeVerifier, randomHex, verifyCodeChallenge };