Public Enum CreatePolicy 
   Inherits System.Enum

public enum CreatePolicy : System.Enum 

ICloneable opt = new BPlusTree<int, int>.Options(PrimitiveSerializer.Int32, PrimitiveSerializer.Int32) 
{
    CreateFile = CreatePolicy.IfNeeded,
    BTreeOrder = 4
};
BPlusTree<int, int>.Options options = (BPlusTree<int, int>.Options)opt.Clone();
            
Assert.AreEqual(CreatePolicy.IfNeeded, options.CreateFile);
Assert.AreEqual(4, options.MaximumChildNodes);
Assert.AreEqual(4, options.MaximumValueNodes);

Dim opt As ICloneable = New BPlusTree(Of Integer, Integer).Options(PrimitiveSerializer.Int32, PrimitiveSerializer.Int32) With { _
    Key .CreateFile = CreatePolicy.IfNeeded, _
    Key .BTreeOrder = 4 _
}
Dim options As BPlusTree(Of Integer, Integer).Options = DirectCast(opt.Clone(), BPlusTree(Of Integer, Integer).Options)

Assert.AreEqual(CreatePolicy.IfNeeded, options.CreateFile)
Assert.AreEqual(4, options.MaximumChildNodes)
Assert.AreEqual(4, options.MaximumValueNodes)