import { CSSProperties, ComputedRef } from 'vue';
import { DataTableSetupProps } from './DataTable';
import type { TableExpandColumn, TableSelectionColumn, TableColumn, TableBaseColumn } from './interface';
export interface RowItem {
    colSpan: number;
    rowSpan: number;
    column: TableColumn;
    isLast: boolean;
}
export interface ColItem {
    key: string | number;
    style: CSSProperties;
    column: TableSelectionColumn | TableExpandColumn | TableBaseColumn;
}
export declare function useGroupHeader(props: DataTableSetupProps): {
    rowsRef: ComputedRef<RowItem[][]>;
    colsRef: ComputedRef<ColItem[]>;
    hasEllipsisRef: ComputedRef<boolean>;
    dataRelatedColsRef: ComputedRef<Array<TableSelectionColumn | TableBaseColumn | TableExpandColumn>>;
};