import React from 'react';
import { BaseSelection, BaseSelectionProps } from './Selection';
import { Option } from '../select2/select';
export interface TreeSelectionProps extends BaseSelectionProps {
    expand?: 'all' | 'first' | 'root' | 'none';
    placeholderRender?: any;
    itemRender?: any;
}
export interface TreeSelectionState {
    expanded: Array<string>;
}
export declare class TreeSelection extends BaseSelection<TreeSelectionProps, TreeSelectionState> {
    static contextType?: React.Context<any> | undefined;
    valueArray: Array<Option>;
    state: TreeSelectionState;
    static defaultProps: {
        expand: "all";
        placeholder: string;
        renderValue: (option: import("../select2/types").OptionType, states: import("./Selection").ItemRenderStates) => JSX.Element;
        multiple: boolean;
        clearable: boolean;
        cascade: boolean;
    };
    componentDidMount(): void;
    componentDidUpdate(prevProps: TreeSelectionProps): void;
    syncExpanded(): void;
    toggleOption(option: Option): void;
    toggleCollapsed(option: Option, index: string): void;
    renderItem(option: Option, index: number, indexes?: Array<number>): JSX.Element;
    render(): JSX.Element;
}
declare const _default: any;
export default _default;