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Editing File: /usr/share/nodejs/@types/node/cluster.d.ts

declare module 'cluster' {
    import * as child from 'child_process';
    import EventEmitter = require('events');
    import * as net from 'net';

// interfaces
    interface ClusterSettings {
        execArgv?: string[] | undefined; // default: process.execArgv
        exec?: string | undefined;
        args?: string[] | undefined;
        silent?: boolean | undefined;
        stdio?: any[] | undefined;
        uid?: number | undefined;
        gid?: number | undefined;
        inspectPort?: number | (() => number) | undefined;
    }

interface Address {
        address: string;
        port: number;
        addressType: number | "udp4" | "udp6";  // 4, 6, -1, "udp4", "udp6"
    }

class Worker extends EventEmitter {
        id: number;
        process: child.ChildProcess;
        send(message: any, sendHandle?: any, callback?: (error: Error | null) => void): boolean;
        kill(signal?: string): void;
        destroy(signal?: string): void;
        disconnect(): void;
        isConnected(): boolean;
        isDead(): boolean;
        exitedAfterDisconnect: boolean;

/**
         * events.EventEmitter
         *   1. disconnect
         *   2. error
         *   3. exit
         *   4. listening
         *   5. message
         *   6. online
         */
        addListener(event: string, listener: (...args: any[]) => void): this;
        addListener(event: "disconnect", listener: () => void): this;
        addListener(event: "error", listener: (error: Error) => void): this;
        addListener(event: "exit", listener: (code: number, signal: string) => void): this;
        addListener(event: "listening", listener: (address: Address) => void): this;
        addListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        addListener(event: "online", listener: () => void): this;

emit(event: string | symbol, ...args: any[]): boolean;
        emit(event: "disconnect"): boolean;
        emit(event: "error", error: Error): boolean;
        emit(event: "exit", code: number, signal: string): boolean;
        emit(event: "listening", address: Address): boolean;
        emit(event: "message", message: any, handle: net.Socket | net.Server): boolean;
        emit(event: "online"): boolean;

on(event: string, listener: (...args: any[]) => void): this;
        on(event: "disconnect", listener: () => void): this;
        on(event: "error", listener: (error: Error) => void): this;
        on(event: "exit", listener: (code: number, signal: string) => void): this;
        on(event: "listening", listener: (address: Address) => void): this;
        on(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        on(event: "online", listener: () => void): this;

once(event: string, listener: (...args: any[]) => void): this;
        once(event: "disconnect", listener: () => void): this;
        once(event: "error", listener: (error: Error) => void): this;
        once(event: "exit", listener: (code: number, signal: string) => void): this;
        once(event: "listening", listener: (address: Address) => void): this;
        once(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        once(event: "online", listener: () => void): this;

prependListener(event: string, listener: (...args: any[]) => void): this;
        prependListener(event: "disconnect", listener: () => void): this;
        prependListener(event: "error", listener: (error: Error) => void): this;
        prependListener(event: "exit", listener: (code: number, signal: string) => void): this;
        prependListener(event: "listening", listener: (address: Address) => void): this;
        prependListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        prependListener(event: "online", listener: () => void): this;

prependOnceListener(event: string, listener: (...args: any[]) => void): this;
        prependOnceListener(event: "disconnect", listener: () => void): this;
        prependOnceListener(event: "error", listener: (error: Error) => void): this;
        prependOnceListener(event: "exit", listener: (code: number, signal: string) => void): this;
        prependOnceListener(event: "listening", listener: (address: Address) => void): this;
        prependOnceListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        prependOnceListener(event: "online", listener: () => void): this;
    }

interface Cluster extends EventEmitter {
        Worker: Worker;
        disconnect(callback?: () => void): void;
        fork(env?: any): Worker;
        isMaster: boolean;
        isWorker: boolean;
        // TODO: cluster.schedulingPolicy
        settings: ClusterSettings;
        setupMaster(settings?: ClusterSettings): void;
        worker?: Worker | undefined;
        workers?: {
            [index: string]: Worker | undefined
        } | undefined;

/**
         * events.EventEmitter
         *   1. disconnect
         *   2. exit
         *   3. fork
         *   4. listening
         *   5. message
         *   6. online
         *   7. setup
         */
        addListener(event: string, listener: (...args: any[]) => void): this;
        addListener(event: "disconnect", listener: (worker: Worker) => void): this;
        addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
        addListener(event: "fork", listener: (worker: Worker) => void): this;
        addListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
        addListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        addListener(event: "online", listener: (worker: Worker) => void): this;
        addListener(event: "setup", listener: (settings: ClusterSettings) => void): this;

emit(event: string | symbol, ...args: any[]): boolean;
        emit(event: "disconnect", worker: Worker): boolean;
        emit(event: "exit", worker: Worker, code: number, signal: string): boolean;
        emit(event: "fork", worker: Worker): boolean;
        emit(event: "listening", worker: Worker, address: Address): boolean;
        emit(event: "message", worker: Worker, message: any, handle: net.Socket | net.Server): boolean;
        emit(event: "online", worker: Worker): boolean;
        emit(event: "setup", settings: ClusterSettings): boolean;

on(event: string, listener: (...args: any[]) => void): this;
        on(event: "disconnect", listener: (worker: Worker) => void): this;
        on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
        on(event: "fork", listener: (worker: Worker) => void): this;
        on(event: "listening", listener: (worker: Worker, address: Address) => void): this;
        on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        on(event: "online", listener: (worker: Worker) => void): this;
        on(event: "setup", listener: (settings: ClusterSettings) => void): this;

once(event: string, listener: (...args: any[]) => void): this;
        once(event: "disconnect", listener: (worker: Worker) => void): this;
        once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
        once(event: "fork", listener: (worker: Worker) => void): this;
        once(event: "listening", listener: (worker: Worker, address: Address) => void): this;
        once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        once(event: "online", listener: (worker: Worker) => void): this;
        once(event: "setup", listener: (settings: ClusterSettings) => void): this;

prependListener(event: string, listener: (...args: any[]) => void): this;
        prependListener(event: "disconnect", listener: (worker: Worker) => void): this;
        prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
        prependListener(event: "fork", listener: (worker: Worker) => void): this;
        prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
        prependListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
        prependListener(event: "online", listener: (worker: Worker) => void): this;
        prependListener(event: "setup", listener: (settings: ClusterSettings) => void): this;

prependOnceListener(event: string, listener: (...args: any[]) => void): this;
        prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): this;
        prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
        prependOnceListener(event: "fork", listener: (worker: Worker) => void): this;
        prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
        // the handle is a net.Socket or net.Server object, or undefined.
        prependOnceListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;
        prependOnceListener(event: "online", listener: (worker: Worker) => void): this;
        prependOnceListener(event: "setup", listener: (settings: ClusterSettings) => void): this;
    }

function disconnect(callback?: () => void): void;
    function fork(env?: any): Worker;
    const isMaster: boolean;
    const isWorker: boolean;
    // TODO: cluster.schedulingPolicy
    const settings: ClusterSettings;
    function setupMaster(settings?: ClusterSettings): void;
    const worker: Worker;
    const workers: {
        [index: string]: Worker | undefined
    };

/**
     * events.EventEmitter
     *   1. disconnect
     *   2. exit
     *   3. fork
     *   4. listening
     *   5. message
     *   6. online
     *   7. setup
     */
    function addListener(event: string, listener: (...args: any[]) => void): Cluster;
    function addListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
    function addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
    function addListener(event: "fork", listener: (worker: Worker) => void): Cluster;
    function addListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
     // the handle is a net.Socket or net.Server object, or undefined.
    function addListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;
    function addListener(event: "online", listener: (worker: Worker) => void): Cluster;
    function addListener(event: "setup", listener: (settings: ClusterSettings) => void): Cluster;

function emit(event: string | symbol, ...args: any[]): boolean;
    function emit(event: "disconnect", worker: Worker): boolean;
    function emit(event: "exit", worker: Worker, code: number, signal: string): boolean;
    function emit(event: "fork", worker: Worker): boolean;
    function emit(event: "listening", worker: Worker, address: Address): boolean;
    function emit(event: "message", worker: Worker, message: any, handle: net.Socket | net.Server): boolean;
    function emit(event: "online", worker: Worker): boolean;
    function emit(event: "setup", settings: ClusterSettings): boolean;

function on(event: string, listener: (...args: any[]) => void): Cluster;
    function on(event: "disconnect", listener: (worker: Worker) => void): Cluster;
    function on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
    function on(event: "fork", listener: (worker: Worker) => void): Cluster;
    function on(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
    function on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
    function on(event: "online", listener: (worker: Worker) => void): Cluster;
    function on(event: "setup", listener: (settings: ClusterSettings) => void): Cluster;

function once(event: string, listener: (...args: any[]) => void): Cluster;
    function once(event: "disconnect", listener: (worker: Worker) => void): Cluster;
    function once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
    function once(event: "fork", listener: (worker: Worker) => void): Cluster;
    function once(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
    function once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
    function once(event: "online", listener: (worker: Worker) => void): Cluster;
    function once(event: "setup", listener: (settings: ClusterSettings) => void): Cluster;

function removeListener(event: string, listener: (...args: any[]) => void): Cluster;
    function removeAllListeners(event?: string): Cluster;
    function setMaxListeners(n: number): Cluster;
    function getMaxListeners(): number;
    function listeners(event: string): Function[];
    function listenerCount(type: string): number;

function prependListener(event: string, listener: (...args: any[]) => void): Cluster;
    function prependListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
    function prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
    function prependListener(event: "fork", listener: (worker: Worker) => void): Cluster;
    function prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
     // the handle is a net.Socket or net.Server object, or undefined.
    function prependListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;
    function prependListener(event: "online", listener: (worker: Worker) => void): Cluster;
    function prependListener(event: "setup", listener: (settings: ClusterSettings) => void): Cluster;

function prependOnceListener(event: string, listener: (...args: any[]) => void): Cluster;
    function prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
    function prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
    function prependOnceListener(event: "fork", listener: (worker: Worker) => void): Cluster;
    function prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
     // the handle is a net.Socket or net.Server object, or undefined.
    function prependOnceListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;
    function prependOnceListener(event: "online", listener: (worker: Worker) => void): Cluster;
    function prependOnceListener(event: "setup", listener: (settings: ClusterSettings) => void): Cluster;

function eventNames(): string[];
}

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