import { EventEmitter } from 'events';
import { AgentEvent } from './event_validation';
export type EventMiddleware = (event: AgentEvent) => AgentEvent | null;
export declare class AgentEventEmitter extends EventEmitter {
    private static instance;
    private middleware;
    private agentListeners;
    private currentAgentId;
    private currentSessionId;
    private isInitialized;
    private constructor();
    static getInstance(): AgentEventEmitter;
    initialize(): void;
    use(middleware: EventMiddleware): void;
    remove(middleware: EventMiddleware): void;
    clearMiddleware(): void;
    setCurrentAgent(agentId: string): void;
    setCurrentSession(sessionId: string): void;
    getCurrentAgent(): string;
    getCurrentSession(): string;
    clearSessionContext(): void;
    private processEvent;
    on(eventType: string, listener: (event: AgentEvent) => void): this;
    addListener(event: string | symbol, listener: (...args: any[]) => void): this;
    removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
    listenerCount(eventType: string): number;
    emit(eventType: string, event: AgentEvent): boolean;
    emitAsync(eventType: string, event: AgentEvent): Promise<boolean>;
}
export declare function getEventEmitter(): AgentEventEmitter;