import type { BuildHeaderParams, BuildHeaderResult } from '../layout/interface';
/**
 * Header Hierarchy
 * - row header
 *   - tree layout
 *     - custom tree layout
 *   - grid layout
 *   - table layout
 * - col header
 *   - grid layout
 *     - single value
 *       - total + sub_total
 *     - more than one value
 *       - total + sub_total
 *         - separate by values
 *   - table layout
 * @param params
 */
export declare const buildHeaderHierarchy: (params: BuildHeaderParams) => BuildHeaderResult;