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using System;
using System.Threading;
using System.Threading.Tasks;

namespace AsyncTest
{
    class Program
    {
        static void Main(string[] args)
        {

zs40x

extension Collection where Indices.Iterator.Element == Index {
    subscript (safe index: Index) -> Generator.Element? {
        return indices.contains(index) ? self[index] : nil
    }
}

class ArrayLookup {

    private let array = ["Hello", "World"]
    

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import UIKit

@IBDesignable
class BorderedButton: UIButton {
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        self.setup()
    }
    

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guard let settingsURL = URL.init(string: UIApplicationOpenSettingsURLString) else { return }
        
guard UIApplication.shared.canOpenURL(settingsURL) else { return }
            
UIApplication.shared.open(settingsURL, completionHandler: nil )

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class List<T> {
    private let listItems: [T]
    
    init() {
        self.listItems = [T]()
    }
    
    init(listItems: [T]) {
        self.listItems = listItems
    }

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class ImmutableList<T> {
    private let listItems: [T]
    
    init() {
        self.listItems = [T]()
    }
    
    init(listItems: [T]) {
        self.listItems = listItems
    }

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  var sensorValid = 
      new Valid.Sensor("TemSensor 2", new List<double> { 12.4D, 77.2D, 88.1D });
  var reportGenerator = 
      new Valid.SensorReportGenerator(
              new FileSystem(),
              new PlainTextSensorReportGenerator(sensorValid)
          );
  reportGenerator.GenerateAndStoreReport("Report_2.txt");

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[TestFixture]
public class Valid
{
  [Test]
  public void TestReportGeneration()
  {
    var sensorName = "TempSensor 1";
    var sensor = new Sensor(sensorName, new List<double>() { 1.0D });

    var expectedContent =

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[TestFixture]
public class Valid
{
    [Test]
    public void TestReportGeneration()
    {
        var sensorName = "TempSensor 1";
        var fileName = "FileName.txt";
        var sensor = new Sensor(sensorName, new List<double>() { 1.0D });

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public class Sensor
{
  public string Name { get; }
  public List<double> MeasuredValues { get; }
  public double AverageValue
    => MeasuredValues.Average();
  public double MinimumValue
    => MeasuredValues.Min();
  public double MaximumValue
    => MeasuredValues.Max();