import type { ViewEngine } from "./viewEngine";
declare const DEFAULT_VIEWS_DIRECTORY: string;
declare const DEFAULT_LAYOUT = "layouts/app.eta";
interface RenderOptions {
    layout?: string | false;
    request?: Request;
}
type LayoutDataResolver = (request?: Request) => Promise<Record<string, unknown>>;
/**
 * Renders `.eta` files as HTML + Eta tags (`<% %>`, `<%= %>`, `<%~ include() %>`).
 * Pug class/attribute shorthand is rejected at render time.
 */
declare class EtaViewEngine implements ViewEngine {
    private eta;
    private etaPending;
    private readonly viewsDirectory;
    private readonly resolveLayoutData?;
    constructor(viewsDirectory?: string, resolveLayoutData?: LayoutDataResolver);
    private getEta;
    private createEta;
    render(name: string, data?: Record<string, unknown>, options?: RenderOptions): Promise<string>;
}
export type { LayoutDataResolver, RenderOptions };
export { DEFAULT_LAYOUT, DEFAULT_VIEWS_DIRECTORY, EtaViewEngine };