Calabonga

public interface ILocalStorageService
{
    Task SetAsync<T>(string key, T item)  where T: class;

    Task SetStringAsync(string key, string value);

    Task<T> GetAsync<T>(string key)  where T: class;

    Task<string> GetStringAsync(string key);

DanielSWolf

using System;
using System.Threading;

static class Program {

	static void Main() {
		Console.Write("Performing some task... ");
		using (var progress = new ProgressBar()) {
			for (int i = 0; i <= 100; i++) {
				progress.Report((double) i / 100);