How to use Delete helper https://community.intersystems.com/post/deletehelper-class-help-deleting-referenced-persistent-classes

Hi:

I don't understand how to use this open exchange item for auto creating deleting items. I think it assumes knowledge in the steps of how to use it which i don't get. 

Added the code into dev on  SRFT.Utility.DeleteHelper.OnDeleteSuper and  SRFT.Utility.DeleteHelper.AddHelper  

current class is 

Class Messages.XML.GenericWif.fileparameters Extends (%Persistent, %XML.Adaptor)
{

Property revisionnumber As %String;

Property primarylink As Messages.XML.GenericWif.primarylink;

Property additionalindexes As Messages.XML.GenericWif.additionalindexes;

} 

Adding the extends doesn't seem to do anything to super it it would initially say 

MPP5610 : Referenced macro not defined: 'LoadObjectNotFound'

if say include Ensemble it compiles but see no change and no ondelete generated 

Compilation started on 02/03/2023 11:07:22 with qualifiers 'cuk /checkuptodate=expandedonly'
Compiling class Messages.XML.GenericWif.fileParametersSynertec
Compiling table Messages_XML_GenericWif.fileParametersSynertec
Compiling routine Messages.XML.GenericWif.fileParametersSynertec.1
Compilation finished successfully in 0.252s.

Include Ensemble Class Messages.XML.GenericWif.fileParametersSynertec Extends (%Persistent, %XML.Adaptor, SRFT.Utility.DeleteHelper.OnDeleteSuper)
{

Property revisionNumber As %String;

Property primaryLink As Messages.XML.GenericWif.primarylink;

Property additionalIndexes As Messages.XML.GenericWif.additionalIndexesSynertec;

Storage Default
{
...

 }