import React, { MutableRefObject } from 'react';
import { CustomField } from '@chargify/custom-fields';
type CustomFieldsFormProps = {
    customFields: CustomField[];
    onChange: (id: number, value: string | number) => void;
    isError: boolean;
    portalContainer: MutableRefObject<HTMLDivElement>;
};
declare const CustomFieldsForm: ({ customFields, onChange, isError, portalContainer, }: CustomFieldsFormProps) => React.JSX.Element;
export default CustomFieldsForm;