import React, { Component, ReactNode } from 'react';
import { ITabGroup, TabGroupProps } from './tab-group.doc';
import { TabPane } from './tab-pane';
export declare class TabGroup extends Component<TabGroupProps> implements ITabGroup {
    private readonly paneSet;
    private _active;
    readonly active: string | undefined;
    private readonly level;
    private readonly size;
    render(): ReactNode;
    register(pane: TabPane): void;
    unregister(pane: TabPane): void;
    private renderSeparator;
    private onInnerTabSwitch;
    static Wrapper: import("styled-components").StyledComponentClass<React.DetailedHTMLProps<React.HTMLAttributes<HTMLDivElement>, HTMLDivElement>, UI.IThemeSchema, React.DetailedHTMLProps<React.HTMLAttributes<HTMLDivElement>, HTMLDivElement>>;
}