import { ColumnGroupType, ColumnType, ColumnsType, DataIndex } from '../types';
export type ColumnNode<TRecord extends Record<string, unknown>> = ColumnType<TRecord> | ColumnGroupType<TRecord>;
export interface HeaderCellMeta<TRecord extends Record<string, unknown>> {
    column: ColumnNode<TRecord>;
    colSpan: number;
    rowSpan: number;
    colStart: number;
    colEnd: number;
    depth: number;
    isLeaf: boolean;
    leafColumns: ColumnType<TRecord>[];
}
export type HeaderRowMeta<TRecord extends Record<string, unknown>> = HeaderCellMeta<TRecord>[];
export declare function isColumnGroup<TRecord extends Record<string, unknown>>(column: ColumnNode<TRecord>): column is ColumnGroupType<TRecord>;
/**
 * 根据 dataIndex 路径从 record 中取值。
 *
 * @example
 * ```ts
 * getByDataIndex({ address: { city: 'NYC' } }, ['address', 'city'])
 * // => 'NYC'
 *
 * getByDataIndex({ name: 'Alice' }, 'name')
 * // => 'Alice'
 * ```
 */
export declare function getByDataIndex(record: Record<string, unknown>, dataIndex?: DataIndex): unknown;
/**
 * 列解析 composable。
 *
 * @param columns - 响应式列配置 getter
 * @returns { leafColumns, headerRows }
 */
export declare function useColumns<TRecord extends Record<string, unknown>>(columns: () => ColumnsType<TRecord>): {
    leafColumns: import('vue').ComputedRef<ColumnType<TRecord>[]>;
    headerRows: import('vue').ComputedRef<HeaderRowMeta<TRecord>[]>;
};
//# sourceMappingURL=useColumns.d.ts.map