Troubleshooting custom transformers for custom aspects in recipe files

Original Slack Thread

Hey guys,
I was trying out custom transformers for the custom aspects that we created. However, the recipe file is not picking that up and we are getting type invalid for the usage. Is it possible to extend custom tranformers for custom created aspects. If so what can I do to overcome this issue, I have tried adding via setup.py too.
Thanks

Could you please post your recipe and if possible transformer code snippet