How can I get list of attachments that are attached from zoho docs?

How can I get list of attachments that are attached from zoho docs?

So, basically when I'am requesting a list of attachments like this:

https://crm.zoho.com/crm/private/xml/Attachments/getRelatedRecords?authtoken=xxxx&scope=crmapi&parentModule=Potentials&id=xxxx

I get an error: "There is no data to show".

There are attachments from the zoho docs though. If I add files directly API call works fine.

How do I get list of zoho docs attachments?