import { Group, SortDirection, SortPropDir, SortType } from '../types/public.types';
import { TableColumn } from '../types/table-column.type';
/**
 * Gets the next sort direction
 */
export declare function nextSortDir(sortType: SortType, current: SortDirection | 'desc' | 'asc'): SortDirection | undefined;
/**
 * Adapted from fueld-ui on 6/216
 * https://github.com/FuelInteractive/fuel-ui/tree/master/src/pipes/OrderBy
 */
export declare function orderByComparator(a: any, b: any): number;
/**
 * creates a shallow copy of the `rows` input and returns the sorted copy. this function
 * does not sort the `rows` argument in place
 */
export declare function sortRows<TRow>(rows: TRow[], columns: TableColumn[], dirs: SortPropDir[]): TRow[];
export declare function sortGroupedRows<TRow>(groupedRows: Group<TRow>[], columns: TableColumn[], dirs: SortPropDir[], sortOnGroupHeader: SortPropDir): Group<TRow>[];