import { SourceRouteHasField } from '../types';
type HasFieldRequestProperties = {
    url: URL;
    cookies: Record<string, string>;
    headers: Headers;
    routeDest?: string;
};
/**
 * Checks if a source route's `has` record conditions match a request, and whether the request
 * destination should be updated based on the `has` record.
 *
 * @param has The `has` record conditions to check against the request.
 * @param requestProperties The request properties to check against.
 * @returns Whether the request matches the `has` record conditions, and the new destination if it changed.
 */
export declare function checkHasField(has: SourceRouteHasField, { url, cookies, headers, routeDest }: HasFieldRequestProperties): {
    valid: boolean;
    newRouteDest?: string;
};
export {};
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