import AbstractColumnHelper, { SerializerOrParserFnProps } from '../../../lib/columnHelper/column.interface';
export declare class JsonHelper extends AbstractColumnHelper {
    columnDefaultMeta: {};
    serializeValue(value: any, params: SerializerOrParserFnProps['params']): string | null;
    parseValue(value: any): string | null;
    parsePlainCellValue(value: any): string;
    equalityComparison(a: any, b: any, _param: SerializerOrParserFnProps['params']): boolean;
}