import { ReactiveControllerHost, LitElement, ReactiveController } from 'lit';
type PropertyWatcherHandler<T extends LitElement> = (reference: T) => void;
export declare class SbbPropertyWatcherController<T extends LitElement> implements ReactiveController {
    private readonly _host;
    private readonly _referenceResolver;
    private readonly _handlers;
    private _reference?;
    private _watchers?;
    constructor(_host: ReactiveControllerHost & HTMLElement, _referenceResolver: () => T | null, _handlers: Partial<Record<keyof T, PropertyWatcherHandler<T>>>);
    hostConnected(): void;
    hostDisconnected(): void;
    connect(): void;
    disconnect(): void;
}
export {};
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