export declare function copy(target: string, destination: string): Promise<void>;
export declare function copyFiles(from: string, to: string, files?: Array<string>): Promise<void>;
export declare function readFileOrUndefined(file: string): string | undefined;
export declare function removeRecursively(globRm: string): Promise<void>;
export declare const bbPackageRoot: (projectRoot: string, filePath: string) => string | undefined;