// Type definitions for @dyna-grid/core v1.1.4
// Project: 
// Definitions by: zhangkun <>
import { Column } from "../entities/column";
import { BeanStub } from "../context/beanStub";
export declare class AutoGroupColService extends BeanStub {
    static GROUP_AUTO_COLUMN_BUNDLE_ID: string;
    private columnController;
    private columnFactory;
    createAutoGroupColumns(rowGroupColumns: Column[]): Column[];
    private createOneAutoGroupColumn;
    private generateDefaultColDef;
}