Series.SampleInto method C# example in .NET 8

[Pinkisagit]

I've noticed that documentation for C# lacks an example for Series.SampleInto method in .NET 8.
Here is an example that uses FuncConvert.FromFunc to convert Func to F#. I think this is somewhat different from older versions of F#/.NET.

This code produces 90 samples every 1 seconds and then sub-samples them every 30 seconds using mean aggregation.

SeriesBuilder<DateTime, double?> data = new SeriesBuilder<DateTime, double?>();
DateTime date = DateTime.UtcNow;
for (int i = 0; i < 90; i++)
{
    data.Add(date, Random.Shared.Next(5, 10));
    date = date.AddSeconds(1);
}
var fsharp = FuncConvert.FromFunc<Series<DateTime, double?>, object>(x => x.Mean());
Func<DateTime, FSharpFunc<Series<DateTime, double?>, object>> avg = date => fsharp;
var samples = data.Series.SampleInto(TimeSpan.FromSeconds(30), Direction.Forward, avg);