How to get internal comments in bulk request?

[vklein]

If i do a search-request via Jira-Api v2 i can expend the fields to get also all comments of the issues i am requesting. 

Now i want to know how i can check if a comment is internal. I saw that i can request this information for each comment using the sd.public.comment property. But that is not possible in the 'search' or 'issue' request. 

Is there a solution?

Thanks in advance.