import React from 'react';
import { DataRendererItem } from './DataRenderer';
import { ClientConn } from '@ticlo/core/editor';
export declare type ExpandState = 'opened' | 'closed' | 'loading' | 'empty' | 'disabled';
interface Props {
    opened: ExpandState;
    onClick: React.MouseEventHandler<HTMLElement>;
}
export declare function ExpandIcon(props: Props): JSX.Element;
export declare abstract class TreeItem<T extends TreeItem<any>> extends DataRendererItem {
    key: string;
    level: number;
    opened: ExpandState;
    onListChange: () => void;
    parent: T;
    connection: ClientConn;
    getConn(): ClientConn;
    getBaseConn(): ClientConn;
    children: T[];
    constructor(parent: T);
    addToList(list: TreeItem<T>[]): void;
    destroyChildren(): void;
    destroy(): void;
}
export {};