import { Response } from "express";
import { PathLike } from "fs";
export declare class responseHelper {
    constructor();
    /**
     * Handles file download by streaming a file to the response and optionally
     * deletes the file after the download completes.
     * @param {{ filePath: PathLike; fileName: string; willDelete: boolean }} result - An object containing file information:
     *  - `filePath` (PathLike): The path to the file to be downloaded.
     *  - `fileName` (string): The name that will be set for the downloaded file.
     *  - `willDelete` (boolean): A flag indicating if the file should be deleted after download.
     * @param {Response} res - The Express response object used to send the file to the client.
     * @returns {void} Sends the file in the response, sets headers, and handles any errors that occur during access, streaming, or deletion.
     * @fires Response#finish - Triggered when the response is finished, indicating download completion.
     * @fires Response#close - Triggered when the connection is closed, which optionally deletes the file if `willDelete` is true.
     */
    protected download(result: {
        filePath: PathLike;
        fileName: any;
        willDelete: any;
    }, res: Response): void;
    /**
     * Renders a view with the specified content.
     * @param {{ view: string; content: object }} result - An object containing:
     *  - `view` (string): The name of the view template to render.
     *  - `content` (object): The data to pass to the view for rendering.
     * @param {Response} res - The Express response object used to render the view.
     * @returns {void} Sends the rendered view in the response.
     */
    protected render(result: {
        view: any;
        content: any;
    }, res: Response): void;
    /**
     * Sends a JSON response with a specified status code.
     * @param {{ statusCode: number }} result - An object containing:
     *  - `statusCode` (number): The HTTP status code to set for the response.
     * @param {Response} res - The Express response object used to send the JSON response.
     * @returns {void} Sends the JSON response with the specified status code.
     */
    protected json(result: {
        statusCode: number;
    }, res: Response): void;
}