Protected Overridable Sub ReadVirtualNodes( _
   ByVal context As ServerSystemContext, _
   ByVal nodesToRead As IList(Of ReadValueId), _
   ByVal values As IList(Of DataValue), _
   ByVal errors As IList(Of ServiceResult), _
   ByVal nodesToValidate As List(Of NodeHandle), _
   ByVal cache As IDictionary(Of NodeId,NodeState) _
) 

protected virtual void ReadVirtualNodes( 
   ServerSystemContext context,
   IList<ReadValueId> nodesToRead,
   IList<DataValue> values,
   IList<ServiceResult> errors,
   List<NodeHandle> nodesToValidate,
   IDictionary<NodeId,NodeState> cache
)