import React from 'react';
import { PureComponent } from '../../utils/component';
import { TreeBranchProps } from './type';
declare class Branch extends PureComponent<TreeBranchProps> {
    element: HTMLDivElement;
    static defaultProps: {
        parentKey: string;
        line: boolean;
    };
    componentDidUpdate(): void;
    componentDidMount(): void;
    branchVarInject: () => void;
    handleDragLeave: React.DragEventHandler<HTMLDivElement>;
    render(): JSX.Element;
}
export default Branch;