import * as ko from 'knockout';
import { SurfaceElementBase, ISurfaceContext } from '../../core/elements/baseSurface';
import { RelationViewModel } from './relationModel';
import { JoinConditionSurface } from './joinConditionSurface';
export declare class RelationSurface extends SurfaceElementBase<RelationViewModel> {
    constructor(control: RelationViewModel, context: ISurfaceContext);
    conditions: ko.ObservableArray<JoinConditionSurface>;
    template: string;
    _getChildrenHolderName(): string;
}