/** Bounded two-line stdin protocol: fresh OTP first, acceptance token second. */
export declare function readInvitationSecrets(): Promise<{
    code: string;
    token: string;
}>;
/** Secret remains local to this prompt, never argv, history, logs or profile state. */
export declare function promptInvitationToken(): Promise<string | null>;
export declare function promptInvitationRecoveryCode(): Promise<string | null>;