export declare function readConfig(path: string): Promise<any>;
export declare function writeConfig(path: string, obj: any): Promise<void>;
export declare function setPath(obj: any, path: string[], newValue: string): any;
export declare function config(configPath: string, key: string, value?: string): Promise<void>;
/** for testing */
export declare function createConfigUpdater(doReadConfig: (path: string) => Promise<any>, doWriteConfig: (path: string, json: any) => Promise<void>): (configPath: string, update: (old: any) => any) => Promise<void>;
export declare function configInPath(configFilePath: string, objPath: string[], value: any): Promise<void>;
export declare function unconfig(configPath: string, key: string): Promise<void>;