import type { WidgetRuntime } from '../internal/types/models/widget-runtime';
export declare const WIDGET_MOUNT_EVENT = "bstp-agent-widget-mounted";
export declare const WIDGET_UNMOUNT_EVENT = "bstp-agent-widget-unmounted";
export interface WidgetEventMap {
    [WIDGET_MOUNT_EVENT]: {
        runtime: WidgetRuntime;
    };
    [WIDGET_UNMOUNT_EVENT]: {
        runtime: WidgetRuntime;
    };
}
export type WidgetEventName = keyof WidgetEventMap;
export type WidgetCustomEvent<TEventName extends WidgetEventName> = CustomEvent<WidgetEventMap[TEventName]>;
export declare function emitWidgetEvent<TEventName extends WidgetEventName>(target: EventTarget, eventName: TEventName, detail: WidgetEventMap[TEventName]): WidgetCustomEvent<TEventName>;
export declare function onWidgetEvent<TEventName extends WidgetEventName>(target: EventTarget, eventName: TEventName, listener: (event: WidgetCustomEvent<TEventName>) => void, options?: boolean | AddEventListenerOptions): () => void;