import { type Request, type Response } from '@zipadee/core';
import type { Stats } from 'node:fs';
type SetHeaders = (res: Response, path: string, stats: Stats) => void;
export interface SendOptions {
    /**
     * Root directory to restrict file access.
     */
    root?: string;
    /**
     * Name of the index file to serve automatically when visiting the root location. (defaults to none).
     */
    index?: string | false;
    /**
     * Browser cache max-age in milliseconds. (defaults to `0`).
     */
    maxage?: number;
    maxAge?: SendOptions['maxage'];
    /**
     * Tell the browser the resource is immutable and can be cached indefinitely. (defaults to false)
     */
    immutable?: boolean;
    /**
     * Allow transfer of hidden files. (defaults to false)
     */
    hidden?: boolean;
    /**
     * Try to serve the gzipped version of a file automatically when gzip is supported by a client and if the requested file with .gz extension exists. (defaults to true).
     */
    gzip?: boolean;
    /**
     * Try to serve the brotli version of a file automatically when brotli is supported by a client and if the requested file with .br extension exists. (defaults to true).
     */
    brotli?: boolean;
    /**
     * If not false (defaults to true), format the path to serve static file servers and not require a trailing slash for directories, so that you can do both /directory and /directory/.
     */
    format?: boolean;
    /**
     * Function to set custom headers on response.
     */
    setHeaders?: SetHeaders;
    /**
     * Try to match extensions from passed array to search for file when no extension is sufficed in URL. First found is served. (defaults to false)
     */
    extensions?: string[] | false;
}
/**
 * Send the file at `path` with the given `options` to the Response.
 */
export declare const send: (req: Request, res: Response, filePath: string, opts?: SendOptions) => Promise<string | undefined>;
export {};
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