import * as React from 'react';
import { ITreeProps, ITreeState } from '../../index';
export declare class TreeChartBase extends React.Component<ITreeProps, ITreeState> {
    private _treeData;
    private _width;
    private _height;
    private _composition;
    private _classNames;
    private _margin;
    private _nodeElements;
    private _linkElements;
    private _treeTraversal;
    constructor(props: ITreeProps);
    componentDidMount(): void;
    componentDidUpdate(prevProps: ITreeProps): void;
    createTreeChart(): void;
    render(): JSX.Element;
}