import { SimulationSnapshot } from '../models/internal/simulation-state';
import { DataItem } from '../models/public/data-item';
import { UnsubscribeFn } from '../models/public/configuration';
export interface EventMap {
    'simulation:tick': SimulationSnapshot;
    'simulation:settled': SimulationSnapshot;
    'bubble:click': {
        item: DataItem;
        event: PointerEvent;
    };
    'bubble:hover': DataItem | null;
}
export type EventName = keyof EventMap;
export type EventHandler<K extends EventName> = (payload: EventMap[K]) => void;
export declare class EventBus {
    private readonly handlers;
    private destroyed;
    on<K extends EventName>(event: K, handler: EventHandler<K>): UnsubscribeFn;
    emit<K extends EventName>(event: K, payload: EventMap[K]): void;
    clear(): void;
}