import { type ObservableListener } from 'observavir';
import { type DeclarativeElement } from '../declarative-element.js';
import { type PropertyInitMapBase } from './element-properties.js';
/**
 * Used for a map of all observables registered to an element instance.
 *
 * @category Internal
 */
export type ObservableListenerMap<OriginalPropertyMap extends PropertyInitMapBase> = Partial<Record<keyof OriginalPropertyMap, ObservableListener<any> | undefined>>;
/**
 * Binds the given property key as a reactive property on the given element.
 *
 * @category Internal
 */
export declare function bindReactiveProperty(element: HTMLElement, propertyKey: PropertyKey): void;
/**
 * Creates an internal proxy for setting inputs and state properties and then updating them on the
 * element itself so they will trigger lit's change detection.
 *
 * @category Internal
 */
export declare function createElementPropertyProxy<PropertyInitGeneric extends PropertyInitMapBase>(element: DeclarativeElement, shouldAlreadyExist: boolean): PropertyInitGeneric;