export default function copy(source: string, outputDir: string, options?: CopyOptions | ((err: Error | null, report: object) => void), callback?: (err: Error | null, report: object) => void): Promise<object>;
export type CopyOptions = {
    clean?: boolean;
    dereference?: boolean;
    includeEmptyDirs?: boolean;
    initialCopy?: boolean;
    force?: boolean;
    preserve?: boolean;
    transform?: TransformFactory | TransformFactory[];
    update?: boolean;
    ignore?: string | string[];
};
import type { TransformFactory } from './utils/normalize-options.js';
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