import * as fileSystem from 'node:fs';
type DashboardAssetFileSystem = {
    constants: Pick<typeof fileSystem.constants, 'O_RDONLY' | 'O_NOFOLLOW' | 'O_NONBLOCK'>;
    realpathSync: (path: string) => string;
    statSync: (path: string) => fileSystem.Stats;
    openSync: (path: string, flags: Parameters<typeof fileSystem.openSync>[1], mode?: Parameters<typeof fileSystem.openSync>[2]) => number;
    fstatSync: (descriptor: number) => fileSystem.Stats;
    read: (descriptor: number, buffer: NodeJS.ArrayBufferView, offset: number, length: number, position: number | null) => Promise<number>;
    closeSync: (descriptor: number) => void;
};
/**
 * Static files belonging to an externally supplied dashboard.
 *
 * `prefix` is mounted as `${prefix}/*`; `directory` must exist before
 * `serve()` is called.
 *
 * @example
 * ```ts
 * import type { DashboardAssets } from '@lostgradient/weft/server';
 *
 * const dashboardAssets: DashboardAssets = {
 *   prefix: '/assets',
 *   directory: './dist/assets',
 * };
 * ```
 */
export interface DashboardAssets {
    prefix: string;
    directory: string;
}
export interface ResolvedDashboardAssets {
    prefix: string;
    directory: string;
}
export declare function resolveDashboardAssets(value: unknown, pageRoutes: readonly string[]): ResolvedDashboardAssets;
export declare function createDashboardAssetRoute(assets: ResolvedDashboardAssets, assetFileSystem?: DashboardAssetFileSystem): Partial<Record<'GET' | 'HEAD', (request: Request) => Response>>;
export {};