import { AxiosInstance, AxiosRequestConfig } from "axios";
export declare const nepseAxios: AxiosInstance;
/**
 * Unified fetch with timeout. Use Axios conventions:
 *   - method: 'GET' | 'POST' | ...
 *   - headers: {...}
 *   - data: request body (for POST/PUT)
 *   - params: query params (for GET)
 * Usage:
 *   fetchWithTimeout(url, { method: 'POST', headers, data })
 */
export declare function fetchWithTimeout(url: string, config?: AxiosRequestConfig, timeout?: number): Promise<any>;
export declare function fetchWithRetry(url: string, config?: AxiosRequestConfig, retries?: number, delay?: number): Promise<any>;
export type HeadersMap = Readonly<Record<string, string>>;
export declare function createHeaders(token?: string, options?: {
    omitAuthorization?: boolean;
}): HeadersMap;