import DataValue from './DataValue';
declare class NullDataValueClass extends DataValue {
    constructor();
    setValue(): void;
    $bindToField(): void;
    $length(): number;
    $convertToDataValue(): DataValue;
    $addDataNode(): void;
    $removeDataNode(): void;
    $getDataNode(): this;
    $containsDataNode(): boolean;
}
declare const NullDataValue: NullDataValueClass;
export default NullDataValue;