@page "/"
@using Blazored.LocalStorage
@inject ILocalStorageService _localstorage

<button @onclick="SetLocalStorage">Click me</button>
@code {
    private async Task SetLocalStorage()
    {
        var entries = new List<(string, int)> { ("foo", 1), ("bar", 2), ("baz", 3) };
        entries.ForEach(item => Console.WriteLine($"{item.Item1}: {item.Item2}"));
        await _localstorage.SetItemAsync("foobarbaz", entries);

        entries = await _localstorage.GetItemAsync<List<(string, int)>>("foobarbaz");
        entries.ForEach(item => Console.WriteLine($"{item.Item1}: {item.Item2}"));
    }
}