import { Bud } from '@roots/bud-framework';
declare module '@roots/bud-framework' {
    interface Bud {
        /**
         * Execute a function before compiler has finished
         */
        before: before;
    }
}
export interface before {
    (callback: ((app: Bud) => Promise<unknown>) | ((app: Bud) => unknown), onError?: (error: Error) => unknown): Bud;
}
/**
 * Execute a function before compiler has finished
 */
export declare const before: before;