import { Action } from "../../core/pipeline/Action";
import { ActionOptionsType } from "../../types/ActionOptionsType";
/**
 * JavaScriptMinifyAction handles the minification of JavaScript files.
 * Uses Terser to reduce file size and optimize performance.
 */
export declare class JavaScriptMinifyAction extends Action {
    /**
     * Executes the JavaScript minification action.
     *
     * @param options - The options containing input and output file paths.
     * @returns A Promise that resolves when the minification process completes.
     * @throws {Error} If input file is missing, minification fails, or output cannot be written.
     */
    execute(options: ActionOptionsType): Promise<void>;
    /**
     * Minifies a JavaScript file using Terser.
     *
     * @param inputPath - Path to the input JavaScript file.
     * @param outputPath - Path where the minified file will be saved.
     * @param customConfig - Custom Terser configuration.
     * @returns A Promise that resolves when the minification is complete.
     */
    private minifyFile;
    /**
     * Provides a description of the action.
     *
     * @returns A string description of the action.
     */
    describe(): string;
}