import type { LitElement } from 'lit';
type Handler = () => void;
/**
 * Runs when the light DOM children of the component changes.
 */
export declare function observeLightDOM(observerConfig?: MutationObserverInit): <ElemClass extends LitElement>(proto: ElemClass, _propertyKey: string, descriptor: TypedPropertyDescriptor<Handler>) => void;
export {};
