import { ElementRef, OnInit, Renderer2 } from '@angular/core';
import { TlDatatableColumn } from '../parts/column/datatable-column';
export declare class TlColgroupDirective implements OnInit {
    private element;
    private renderer;
    colgroup: Array<TlDatatableColumn>;
    private colGroupElement;
    constructor(element: ElementRef, renderer: Renderer2);
    ngOnInit(): void;
    createElementColGroup(): void;
    createElementsColForColGroup(): Promise<void>;
}
