/**
 * Create a callback that takes a version number and checks if the version
 * is valid compared to configured version / detected version.
 *
 * @param options Options
 * @param options.cwd The current working directory
 * @param options.physicalFilename The real filename where ESLint is linting currently
 * @return Function validator, return a boolean whether current version satisfies minimal required for the rule
 */
export declare function createLibVersionValidator({ cwd, physicalFilename }: {
    cwd: string;
    physicalFilename: string;
}): ((version: string) => boolean);
/**
 * Clear the module cache
 */
export declare function clearCache(): void;