pagination in listIssueComments

I need to fetch all comments (>50) in an issue, but I don't know how to pass params like

{
    per_page: 100,
    page: 2
}

to listIssueComments.

I also find that there is a method called _requestAllPages, but only applied to listIssues.

Is is better to add options params or use _requestAllPages in listIssueComments?

Thanks a lot.