import type { fetch as FetchWeb } from './web';
import type { fetch as FetchNode } from './node';
/** @ignore */
export declare const HTTP_METHODS: string[];
/** @ignore */
export declare const HTTP_METHOD_BODY_REMOVE: string[];
/**
 * Converts the given object into a URLSearchParms object
 *
 * Note: only the top-level structure is handled
 * @param obj
 */
export declare const toURLSearchParams: (obj: Record<string, any>) => URLSearchParams;
/**
 * Shared init normalization helper
 * @param init
 */
export declare const normalizeInit: <T extends FetchNode.Init = FetchWeb.Init>(init?: T) => T;