Protected MustOverride Function BuildVerifierCore( _
   ByVal declaringType As Type, _
   ByVal propertyName As String _
) As Verifier

Dim instance As VerifierAttribute
Dim declaringType As Type
Dim propertyName As String
Dim value As Verifier
 
value = instance.BuildVerifierCore(declaringType, propertyName)

protected abstract Verifier BuildVerifierCore( 
   Type declaringType,
   string propertyName
)

protected:
abstract Verifier^ BuildVerifierCore( 
   Type^ declaringType,
   String^ propertyName
)