/**
 * Webpack plugin.
 */
export interface ApplyPlugin {
    /**
     * Loose defined
     */
    [key: string]: any;
    /**
     * Apply callback
     *
     * @see {@link https://webpack.js.org/contribute/writing-a-plugin/#basic-plugin-architecture}
     */
    apply: (...args: Array<any>) => unknown;
}
/**
 * Newable function or class that returns
 * an {@link ApplyPlugin} instance.
 */
export interface ApplyPluginConstructor {
    new (...args: any[]): ApplyPlugin;
}
/**
 * A decorator that adds a plugin property to the class.
 *
 * @param plugin - {@link ApplyPlugin}
 */
export declare const plugin: (plugin: new (...args: any[]) => {
    apply: CallableFunction;
}) => <Type extends {
    new (...args: any[]): any;
}>(constructor: Type) => {
    new (...args: any[]): {
        [x: string]: any;
        plugin: new (...args: any[]) => {
            apply: CallableFunction;
        };
    };
} & Type;