export declare function getMissingIndexError(engine: string): string;
export declare function getInvalidEngineError(attempted: string): string;
export declare function getSourcepathNotFoundError(sourcepath: string, reason: 'not_found' | 'not_directory'): string;
export declare function getSizeBudgetExceededError(type: 'size' | 'gzipSize', limit: number, actual: number): string;
export declare function getMaxUriHandlersHint(engine: string, routeCount: number, espmethod?: string): string;