export declare const createPackageKey: (separator?: string) => (pkg: string) => (version: string) => string;
export declare const packageAtVersion: (pkg: string) => (version: string) => string;
export declare const buildKey: (separator: string) => (...parts: string[]) => string;
export declare const atKey: (...parts: string[]) => string;
export declare const colonKey: (...parts: string[]) => string;