import { Mapping } from '../base';
import type { MappingKey } from '../base/types';
declare global {
    interface HTMLElementTagNameMap {
        'nimble-mapping-empty': MappingEmpty;
    }
}
/**
 * Maps data values to text.
 * One or more may be added as children of a nimble-table-column-mapping element. The
 * mapping displays an empty cell and text-only group rows.
 */
export declare class MappingEmpty extends Mapping<MappingKey> {
    text?: string;
}
export declare const mappingEmptyTag = "nimble-mapping-empty";
