export declare const VIRTUAL_CESIUM_ID = "virtual:cesium";
export declare const RESOLVED_VIRTUAL_CESIUM_ID = "\0virtual:cesium";
export declare const VIRTUAL_VERSION_ID = "virtual:cesium/version";
export declare const RESOLVED_VIRTUAL_VERSION_ID = "\0virtual:cesium/version";
export declare function virtualCesiumSource(cesiumBaseUrl: string, activeToken: string | undefined): string;
export declare function virtualVersionSource(version: string): string;