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using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;

/// <summary>
/// Allows moving between UI components using tab and shift-tab.
/// </summary>
public class TabNavigator : MonoBehaviour
{
    EventSystem system;

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const net = require('net');

function findUnusedPort() {
  return new Promise(resolve => {
    const server = net.createServer();

    // When the port is omitted, the OS provides an unused one.
    // https://nodejs.org/api/net.html#net_server_listen_port_host_backlog_callback
    server.listen(() => {
      const { port } = server.address();

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typealias Reducer<StateType, ActionType> = (_ state: StateType, _ action: ActionType) -> StateType

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import AppKit

extension NSImage {

    /// Copies this image to a new one with a circular mask.
    func oval() -> NSImage {
        let image = NSImage(size: size)
        image.lockFocus()

        NSGraphicsContext.current?.imageInterpolation = .high

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import Foundation

class MyService: NSObject, MyServiceProtocol {
    func upperCaseString(_ string: String, withReply reply: @escaping (String) -> Void) {
        let response = string.uppercased()
        reply(response)
    }
}

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import AppKit

extension NSApplication {

    /// Restarts the application.
    func restart() {
        let process = Process()
        process.launchPath = "/bin/sh"
        process.arguments = ["-c", "sleep 1; open '\(Bundle.main.bundlePath)'"]
        process.launch()

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import Cocoa

extension NSMutableAttributedString {

    /// Makes the specified text a clickable hyperlink.
    func hyperlink(text: String, with url: URL, additionalAttributes: [NSAttributedStringKey: Any] = [:]) {
        var attributes = additionalAttributes
        attributes[.link] = url.absoluteString
        let range = (string as NSString).range(of: text)
        addAttributes(attributes, range: range)

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// You don't necessarily need this subclass if your NSTextView is selectable.
// If it isn't though, this allows you to have an uneditable, unselectable label where links work as expected.

import AppKit

class HyperlinkTextView: NSTextView {

    override func mouseDown(with event: NSEvent) {
        super.mouseDown(with: event)
        openClickedHyperlink(with: event)

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extension Collection {

    /// Returns the element at the specified index if it is within bounds, or nil if it's outside.
    subscript(safe index: Index) -> Iterator.Element? {
        return indices.contains(index) ? self[index] : nil
    }
}

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import Foundation

extension String {

    /// Finds and returns the ranges of occurrences of a given string within a given range of the `String`.
    func ranges(of searchString: String, options: CompareOptions = [], range searchRange: Range<Index>? = nil, locale: Locale? = nil) -> [Range<Index>] {
        let searchRange = searchRange ?? startIndex..<endIndex

        if let foundRange = range(of: searchString, options: options, range: searchRange, locale: locale) {
            let nextRange = foundRange.upperBound..<searchRange.upperBound