import { UntypedFormGroup } from '@angular/forms';
import { KlesTreeColumnConfig } from '../../../models/columnconfig.model';
import { AbstractCell } from '../../cell/cell.abstract';
export declare abstract class AbstractTreeCell extends AbstractCell<KlesTreeColumnConfig> {
    row: UntypedFormGroup;
    formatIndentation(node: UntypedFormGroup, step?: number): string;
    onNodeClick(row: any): void;
}