export declare const DEV_TRANSFORM_URL_PREFIX = "/assets/__eco_dev__";
export declare const VENDOR_URL_PREFIX = "/assets/vendors";
/**
 * Strips cache-busting query parameters from a browser module URL.
 */
export declare function stripModuleUrlQuery(moduleUrl: string): string;
/**
 * Returns true when a module URL is served by the dev transform server.
 */
export declare function isDevTransformModuleUrl(moduleUrl: string): boolean;
/**
 * Appends a cache-busting query parameter for hot module imports.
 */
export declare function withModuleCacheBust(moduleUrl: string, timestamp?: number): string;