export declare type THandler = (...args: any[]) => any;
export declare type TEmitterHandlers = THandler[];
export declare type TEmitterSignature = symbol | string;
export interface IEmitterOptions {
    strict?: boolean;
    maxSubscribersCount?: number;
}
export declare function EventHandler(): (target: any, propertyKey: string, descriptor: PropertyDescriptor) => any;
export default class Emitter {
    private _handlers;
    private _strict;
    private _maxSubscribersCount;
    constructor(params?: IEmitterOptions);
    subscribe(signature: any, handler: THandler): boolean;
    unsubscribe(signature: any, handler: THandler): boolean;
    unsubscribeAll(signature?: any): void;
    emit(signature: any, ...args: any[]): false | undefined;
    listeners(signature: any): TEmitterHandlers | undefined;
    clear(): void;
    private __getSymbolSignature;
    private _getStringSignature;
}