import { ColumnNestedValueFormatterProps } from './types';
import { RenderGroupCellProps } from 'react-data-grid';
/**
 * Formatter to display nested values in group rows (TreeDataGrid).
 *
 * Uses the first row in the group (childRows[0]) as the data source.
 * When onLink is provided, the content is clickable and runs onLink(representativeRow) (link-like style, no navigation).
 * @param props - Formatter props including fieldValue, Component, onLink
 * @returns Function that receives RenderGroupCellProps and returns the formatted value
 */
export declare function ColumnNestedValueGroupFormatter<TRow>(props: ColumnNestedValueFormatterProps<TRow>): (groupProps: RenderGroupCellProps<TRow>) => import("@emotion/react/jsx-runtime").JSX.Element;
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