Hello

We are trying to use custom repository to store case attachments in Pega 8.3

I am following the instructions as per the help from Pega.

https://community.pega.com/knowledgebase/articles/data-integration/custom-repository-types

So far Uploading and Retrieving an attachment works fine when we overrode the following two:
Create file API (D_pxNewFile)
Get file API (D_pxGetFile)

However, for fetching attachments, I do not see List files API (D_pxListFiles) getting called.
Upon tracing, D_AttachmentList is called,however there is no where the list files API (D_pxListFiles) getting invoked.

So, even if I override D_pxListFiles, I do not see the same getting called anywhere, where my custom pyGetFiles activity will be invoked.
What is the recommended approach here? Should I update the D_AttachmnetList datapage to invoke the new connector to retrieve file from my repository ?
It seems documentation provided by Pega is not helpful for fetching list of attachments.