/**
 * Client-side implementation of nostr-biometric-login
 */
import type { AuthenticationOptions, AuthenticationState, SessionToken } from '../types/auth';
export declare class NostrBiometricClient {
    private options;
    private state;
    constructor(options: AuthenticationOptions);
    /**
     * Start the authentication process for a given npub
     * @param npub The user's npub to authenticate
     */
    startAuth(npub: string): Promise<void>;
    /**
     * Get the current authentication state
     */
    getState(): AuthenticationState;
    private setState;
}
export type { AuthenticationOptions, AuthenticationState, SessionToken };