/**
 * Fetches reserved connection IDs from the backend.
 * Loads system-reserved connection IDs into ReservedConnectionIds cache.
 *
 * @returns void - Updates ReservedConnectionIds cache with reserved IDs
 *
 * @example
 * await GetReservedConnectionIds(); // Loads reserved connection IDs
 */
export declare function GetReservedConnectionIds(): Promise<void>;