import { WidgetType } from '@brainfish-ai/widgets-common';
/**
 * Manages the core state of a widget instance
 * Single responsibility: Track widget open/closed state
 */
export declare class WidgetState {
    readonly widgetKey: string;
    readonly widgetType: WidgetType;
    private isOpen;
    constructor(widgetKey: string, widgetType: WidgetType);
    get isWidgetOpen(): boolean;
    openWidget(): void;
    closeWidget(): void;
    toggleWidget(): boolean;
}