export interface StateFileSystem {
    mkdir(path: string, options: {
        recursive: true;
    }): Promise<unknown>;
    readFile(path: string, encoding: BufferEncoding): Promise<string>;
    writeFile(path: string, data: string, options?: BufferEncoding | {
        encoding?: BufferEncoding;
        flag?: string;
        mode?: number;
    }): Promise<void>;
    rename(oldPath: string, newPath: string): Promise<void>;
    readdir(path: string): Promise<string[]>;
    stat(path: string): Promise<{
        isFile(): boolean;
        mtimeMs: number;
    }>;
    lstat?(path: string): Promise<{
        isSymbolicLink(): boolean;
    }>;
    unlink(path: string): Promise<void>;
}
export declare const defaultStateFs: StateFileSystem;
export declare function isNotFoundError(error: unknown): boolean;
export declare function assertPathHasNoSymbolicLinks(fs: StateFileSystem, targetPath: string, message: string): Promise<void>;