export type Operation = "write" | "append" | "delete";
export declare class ReadFile {
    static readFile(filename: string): string;
}
export declare class WriteToFile {
    static writeToFile(filename: string, text: string): string;
}
export declare class AppendToFile {
    static appendToFile(filename: string, text: string, should_log?: boolean): string;
}
export declare class DownloadFile {
    static downloadFile(url: string, destinationPath: string): Promise<string>;
}