import { LitElement } from '../../../../node_modules/lit';
export declare class SbSignIn extends LitElement {
    renderSpec: string | null;
    createRenderRoot(): this;
    private __flowStarted;
    private __initialized;
    protected firstUpdated(): void;
    private startAuthFlow;
    private tryRemoveFallback;
    protected updated(): void;
    render(): import('../../../../node_modules/lit-html').TemplateResult<1>;
}