import React from 'react';
import { WidgetProps } from '../../types/widget';
import { CORE_VERSION, CoreWidgetName } from '@sunmao-ui/shared';
declare type NullFieldType = `${typeof CORE_VERSION}/${CoreWidgetName.NullField}`;
declare type Props = WidgetProps<NullFieldType>;
declare module '../../types/widget' {
    interface WidgetOptionsMap {
        'core/v1/null': {};
    }
}
export declare const NullField: React.FC<Props>;
declare const _default: {
    kind: string;
    impl: React.ComponentType<WidgetProps<"core/v1/null", any>>;
    version: string;
    metadata: {
        name: string;
    };
    spec?: {
        options?: import("json-schema").JSONSchema7 | undefined;
    } | undefined;
};
export default _default;