export declare class PortalTree {
    protected portalKey: string;
    protected children: Map<string, JSX.Element>;
    constructor();
    protected _rendered: boolean;
    dispatch(): void;
    root: () => JSX.Element[];
    render(): JSX.Element[];
    protected _getContainer(): HTMLDivElement;
    init(): void;
    unmount(x: string): void;
    child(id: string, x: JSX.Element): void;
}