import type { AuthenticatorCredentialResult, CheckDataResult } from '@machinat/auth';
import { NoneUser } from './instance';
import { WebviewClientAuthenticator } from '../types';
import type { NoneAuthData, NoneAuthContext } from './types';
declare class NoneClientAuthenticator implements WebviewClientAuthenticator<NoneAuthData, NoneAuthData, NoneAuthContext> {
    platform: string;
    marshalTypes: (typeof NoneUser)[];
    init(): Promise<void>;
    fetchCredential(): Promise<AuthenticatorCredentialResult<NoneAuthData>>;
    checkAuthData({ user: userId, channel: channelId, }: NoneAuthData): CheckDataResult<NoneAuthContext>;
    closeWebview(): boolean;
}
export default NoneClientAuthenticator;