declare module 'events' {
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interface NodeEventTarget {
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once(event: string | symbol, listener: (...args: any[]) => void): this;
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}
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interface DOMEventTarget {
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addEventListener(event: string, listener: (...args: any[]) => void, opts?: { once: boolean }): any;
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}
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class EventEmitter extends NodeJS.EventEmitter {
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constructor();
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static once(emitter: NodeEventTarget, event: string | symbol): Promise<any[]>;
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static once(emitter: DOMEventTarget, event: string): Promise<any[]>;
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static on(emitter: NodeJS.EventEmitter, event: string): AsyncIterableIterator<any>;
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/** @deprecated since v4.0.0 */
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static listenerCount(emitter: NodeJS.EventEmitter, event: string | symbol): number;
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/**
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* This symbol shall be used to install a listener for only monitoring `'error'`
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* events. Listeners installed using this symbol are called before the regular
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* `'error'` listeners are called.
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*
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* Installing a listener using this symbol does not change the behavior once an
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* `'error'` event is emitted, therefore the process will still crash if no
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* regular `'error'` listener is installed.
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*/
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static readonly errorMonitor: unique symbol;
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static readonly captureRejectionSymbol: unique symbol;
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/**
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* Sets or gets the default captureRejection value for all emitters.
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*/
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// TODO: These should be described using static getter/setter pairs:
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static captureRejections: boolean;
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static defaultMaxListeners: number;
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}
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import internal = require('events');
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namespace EventEmitter {
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// Should just be `export { EventEmitter }`, but that doesn't work in TypeScript 3.4
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export { internal as EventEmitter };
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}
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export = EventEmitter;
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}
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