import type { IStringifyOptions } from 'qs';
export interface FetcherOptions<TQueryParams = never, TBody = never, THeaderParams = HeadersInit> extends Omit<RequestInit, 'body' | 'headers'> {
    url: string;
    queryParams?: TQueryParams extends never ? undefined : TQueryParams;
    body?: TBody extends never ? undefined : TBody;
    stringifyQueryParamsOptions?: IStringifyOptions;
    headers?: THeaderParams;
}
export interface ClientCallbacks {
    responseInterceptor?: (response: Response) => Response;
    requestInterceptor?: (request: Request) => Request;
    urlInterceptor?: (url: string) => string;
    getRequestHeaders?: () => Record<string, any>;
}
export declare function setupClient(callbacks: ClientCallbacks): void;
export declare const updateClientHeaders: (headers: Record<string, any>) => void;
export declare function fetcher<TResponse = unknown, TQueryParams = never, TBody = never, THeaderParams = HeadersInit>(options: FetcherOptions<TQueryParams, TBody, THeaderParams>): Promise<TResponse>;