import { TReferenceProps } from '../../..';
import { IStringProps, TStringValidatorResult } from '../_types';
export interface IIsJSONProps {
}
/**
 * Check if the string is valid JSON (note: uses `JSON.parse`).
 */
export declare const isJSON: (props?: TReferenceProps<IIsJSONProps> & IStringProps) => TStringValidatorResult;