Imports System.Collections.Generic
Imports System.Collections.Immutable
Public Shared ReadOnly AllPages As ImmutableHashSet(Of String) = ImmutableHashSet.Create({"a", "b", "c" })
Public Shared Sub MonkeyWithAllPages()
Console.WriteLine("Property: " & String.Join(", ", Reskin.AllPages))
Reskin.MonkeyWithAllPages()
Console.WriteLine("Copying has protected the property from mutation: " & String.Join(", ", Reskin.AllPages))