how can I can get bid and bid modifier as well

How to get additional fields in site level summary report?

Hi Admin.

I am trying to get site level summary report.
I want to know how can I can get bid and bid modifier as well?
This is the request URL :
"https://backstage.taboola.com/backstage/api/1.0/" . env('TABOOLA_API_ACCOUNT_ID') . "/reports/campaign-summary/dimensions/site_breakdown"

Could you please help me with how to get these additional fields in the summary report?

Thanks.