using System.Collections.Generic;
public Dictionary<string, string> SomeProp { get; set; } = new() { { "foo", "bar" } };
public static void Main()
SomeProp = new() { { "a", "b" } }
SomeProp = { { "a", "b" } }
Console.WriteLine($"a: {a.SomeProp.Count} | b: {b.SomeProp.Count}");