import { FormatHandle, Formatter, FormatType } from '../../../../formatter/formatter';
import { FormatContext } from '../../../../formatter/format-context';
import { IsNullDescription } from './is-null-description';
export declare class IsNullFormatter implements FormatHandle<IsNullDescription<any>> {
    type: FormatType;
    canHandle(param: any): boolean;
    handle(param: IsNullDescription<any>, ctx: FormatContext, formatter: Formatter): string;
}