export interface EventEmitterInterface {
    on(event: string, listener: () => void): void;
    removeListener(event: string, listener: () => void): void;
    emit(event: string, ...args: any[]): void;
    once(event: string, listener: () => void): void;
}
export default class EventEmitter implements EventEmitterInterface {
    private _events;
    readonly events: {
        [name: string]: (() => void)[];
    };
    on(event: string, listener: () => void): void;
    removeListener(event: string, listener: () => void): void;
    emit(event: string, ...args: any[]): void;
    once(event: string, listener: () => void): void;
}
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