/**
 * Timeout handling utilities
 */
/**
 * Create an AbortController with timeout
 */
export declare function createTimeoutController(timeoutMs: number): {
    controller: AbortController;
    cleanup: () => void;
};
/**
 * Execute a fetch with timeout
 */
export declare function fetchWithTimeout(url: string, init: RequestInit, timeoutMs: number): Promise<Response>;