/**
 * A function that makes an HTTP request. It's responsible for throwing {@link TimeoutError} and aborting the request on {@param params.timeout}.
 * It should return the response status and full body as a string. It should not throw on any status, even if 4xx or 5xx.
 * It can decide to implement retries as appropriate. The default fetcher currently does not implement any retry strategy.
 */
export type Fetcher = (params: {
    method: string;
    url: string;
    headers: {
        [name: string]: string;
    };
    body?: string;
    timeout: number;
}) => Promise<{
    status: number;
    body: string;
}>;
export declare function getRuntimeFetcher(): Fetcher;