export interface ShadowLifeCycleListener {
    connected(): void;
    disconnected(): void;
}
declare class IInternalShadow extends HTMLElement {
    constructor();
    setLifeCycleListener(lifecycleListener: ShadowLifeCycleListener): this;
    getShadowRoot(): ShadowRoot;
}
interface InternalShadowClass {
    new (): IInternalShadow;
}
export declare const InternalShadow: InternalShadowClass;
export declare type InternalShadow = IInternalShadow;
export declare let didRegisterCustomElement: boolean;
export {};