export declare function getFetch(): typeof fetch;
export interface FetchOptions {
    timeout?: number;
    method?: string;
    headers?: Record<string, string>;
    body?: string;
    signal?: AbortSignal;
}
export declare function fetchWithTimeout(url: string, options?: FetchOptions): Promise<Response>;
export declare function postJSON(url: string, body: unknown, timeout?: number): Promise<Response>;