Public Overridable Function CreateMonitoredItems( _
   ByVal requestHeader As RequestHeader, _
   ByVal subscriptionId As UInteger, _
   ByVal timestampsToReturn As TimestampsToReturn, _
   ByVal itemsToCreate As MonitoredItemCreateRequestCollection, _
   ByRef results As MonitoredItemCreateResultCollection, _
   ByRef diagnosticInfos As DiagnosticInfoCollection _
) As ResponseHeader

public virtual ResponseHeader CreateMonitoredItems( 
   RequestHeader requestHeader,
   uint subscriptionId,
   TimestampsToReturn timestampsToReturn,
   MonitoredItemCreateRequestCollection itemsToCreate,
   out MonitoredItemCreateResultCollection results,
   out DiagnosticInfoCollection diagnosticInfos
)