/**
 * allConfig returns a copy of the full config map.
 */
export declare function allConfig(): {
    [key: string]: string;
};
/**
 * setConfig sets a configuration variable.
 */
export declare function setConfig(k: string, v: string): void;
/**
 * getConfig returns a configuration variable's value or undefined if it is unset.
 */
export declare function getConfig(k: string): string | undefined;