import { EventEmitter } from "node:events";
import type { LaunchpadEvents } from "./types.js";
type EventKey<TEvents extends object> = Extract<keyof TEvents, string>;
type EventHandler<TEvents extends object, K extends EventKey<TEvents>> = (data: TEvents[K]) => void;
type AnyEventHandler<TEvents extends object> = <K extends EventKey<TEvents>>(event: K, data: TEvents[K]) => void;
/**
 * Generic type-safe EventBus built on Node's EventEmitter.
 * @template TEvents - Mapping of event names to payload types
 */
export declare class EventBus<TEvents extends object = LaunchpadEvents> extends EventEmitter {
    private _anyHandlers;
    constructor();
    emit<K extends EventKey<TEvents>>(event: K, data: TEvents[K]): boolean;
    on<K extends EventKey<TEvents>>(event: K, handler: EventHandler<TEvents, K>): this;
    off<K extends EventKey<TEvents>>(event: K, handler: EventHandler<TEvents, K>): this;
    onAny(handler: AnyEventHandler<TEvents>): this;
    offAny(handler: AnyEventHandler<TEvents>): this;
    onPattern(pattern: RegExp, handler: AnyEventHandler<TEvents>): void;
    once<K extends EventKey<TEvents>>(event: K, handler: EventHandler<TEvents, K>): this;
    removeAllListeners(event?: string): this;
    listenerCount(event: string): number;
}
export {};
//# sourceMappingURL=event-bus.d.ts.map