import FormData from 'form-data';
/**
 * A convenience function for creating form data.
 *
 * @param data A key / value record of fields to append to the form data.  Booleans, numbers,
 *   strings, and `null` will be added to the form data raw. Objects will be transformed to JSON
 *   objects. Arrays will be iterated over and every item will be appended for the given key.
 * @returns The data represented as form data.
 */
export declare function createFormData(data: Record<string, any>): FormData;