/// <reference types="node" />
export declare function fileExists(path: string): Promise<boolean>;
export declare function fileExistsSync(path: string): boolean;
export declare function realpath(path: string): Promise<string>;
export declare function readFile(filePath: string, encoding?: BufferEncoding): Promise<string>;
export declare function writeFile(filePath: string, content: string, encoding?: BufferEncoding): Promise<void>;
export declare function mkdir(filePath: string): Promise<void>;
export declare function callsites(): {
    getFileName(): string | null;
}[];
export declare function dirName(): string | null;