export type KnownApps = (appId: string) => Promise<boolean>;
export declare function setKnownApps(fn: KnownApps): void;
export declare function hasKnownApps(): boolean;
export type AppFamilies = Map<string, string>;
export declare function parseAppFamilies(raw: string): AppFamilies;
export declare function setAppFamilies(families: AppFamilies): void;
export declare function familyRoot(appId: string): string;
export declare function knownApps(): KnownApps;
