import type { Logger } from './logger.js';
/**
 * Generic event map type - keys are event names, values are listener signatures
 */
export type EventMap = Record<string, (...args: any[]) => void>;
/**
 * Simple typed EventEmitter implementation.
 * Works in browser and Node.js environments without dependencies.
 */
export declare class EventEmitter<Events extends EventMap> {
    private listeners;
    /**
     * Logger for reporting errors in event listeners.
     * Subclasses should set this to their logger instance.
     * @internal
     */
    protected _emitterLogger?: Logger;
    /**
     * Register an event listener.
     * @returns Unsubscribe function
     */
    on<K extends keyof Events>(event: K, listener: Events[K]): () => void;
    /**
     * Remove an event listener.
     */
    off<K extends keyof Events>(event: K, listener: Events[K]): void;
    /**
     * Register a one-time event listener.
     * @returns Unsubscribe function
     */
    once<K extends keyof Events>(event: K, listener: Events[K]): () => void;
    /**
     * Emit an event to all registered listeners.
     */
    protected emit<K extends keyof Events>(event: K, ...args: Parameters<Events[K]>): void;
    /**
     * Remove all listeners for a specific event, or all listeners if no event specified.
     */
    removeAllListeners<K extends keyof Events>(event?: K): void;
    /**
     * Get the number of listeners for a specific event.
     */
    listenerCount<K extends keyof Events>(event: K): number;
}
//# sourceMappingURL=event-emitter.d.ts.map