Code for getting interpolated creation date by telegram id

getCreationDateTelegram.cs

using Python.Runtime;

PythonEngine.Initialize();

using var _ = Py.GIL(); 

var np = Py.Import("numpy");

var polyfit = np.polyfit;
var poly1d = np.poly1d;

// define knows creation date for interpolation
var dic = new Dictionary<long, DateTimeOffset>()
{
    { tgId, DateTime.Parse("creationDatePoint") },
    // ...
};

var beta = dic.ToDictionary(
    x => (double)x.Key, 
    x => (double)x.Value.ToUnixTimeSeconds());
    
var interpolator = poly1d(polyfit(beta.Keys.ToArray(), beta.Values.ToArray(), dic.Count));

var telegramCreationDate = DateTimeOffset.FromUnixTimeSeconds((long)Math.Floor((double)interpolator(requestedTelegramId)));