import { Field } from '../models';
import { SerializeFn } from './serialize-fn';
/**
 * Builds and stringifies a JSON object from the given `fields`' `name` and
 * `value`. If the `value` is a [`File`](https://developer.mozilla.org/en-US/docs/Web/API/File),
 * its `name` is used.
 */
export declare const serializeJson: SerializeFn<Field, string>;