import { BaseMetadataFieldValidator, DatasetMetadataFieldAndValueInfo } from './BaseMetadataFieldValidator';
import { MultipleMetadataFieldValidator } from './MultipleMetadataFieldValidator';
import { SingleMetadataFieldValidator } from './SingleMetadataFieldValidator';
export declare class MetadataFieldValidator extends BaseMetadataFieldValidator {
    private singleMetadataFieldValidator;
    private multipleMetadataFieldValidator;
    constructor(singleMetadataFieldValidator: SingleMetadataFieldValidator, multipleMetadataFieldValidator: MultipleMetadataFieldValidator);
    validate(datasetMetadataFieldAndValueInfo: DatasetMetadataFieldAndValueInfo): void;
    private isEmptyString;
    private isEmptyArray;
}