/// <reference types="angular" />
import { IPromise } from 'angular';
import { NgTableParams } from '../ngTableParams';
import { IDataRowGroup } from '../data';
/**
 * Signature of a function that will called whenever {@link NgTableParams} requires to group
 * the data rows for display in the table
 * @param params the table requesting the rows to be grouped
 */
export interface IGetGroupFunc<T> {
    (params: NgTableParams<T>): IDataRowGroup<T>[] | IPromise<IDataRowGroup<T>[]>;
}