import { EventEmitter } from '../utils/EventEmitter';
import { Component } from '../core/Component';
import { VNode } from 'src/Types';
export declare class ReactiveUI extends EventEmitter {
    private rootElement;
    private virtualDOM;
    private components;
    private eventDelegator;
    private errorBoundary;
    constructor();
    mount(element: HTMLElement): void;
    unmount(): void;
    update(newVDOM: VNode): void;
    private applyPatches;
    private createNode;
    private removeNode;
    private replaceNode;
    private updateNode;
    private renderVNode;
    getComponentInstance(id: string): Component<any, any> | undefined;
    updateComponentProps(id: string, newProps: any): void;
    private hasPropsChanged;
    private triggerLifecycleHook;
    setErrorHandler(handler: (error: Error) => void): void;
}