import { ExecException, ChildProcess } from 'child_process' declare function fastFolderSize( path: string, options: { signal: AbortSignal }, callback: (err: ExecException | null, bytes?: number) => void ): ChildProcess declare function fastFolderSize( path: string, callback: (err: ExecException | null, bytes?: number) => void ): ChildProcess export default fastFolderSize