github.com/prebid/prebid-server/v2@v2.18.0/adapters/impactify/impactifytest/supplemental (about) bad_response.json buyeruid.json currency_rate_not_found.json headers.json headers_ip.json http_204.json http_400.json http_500.json invalid_imp.json negative_price.json no_seat_bid.json not_supported_media_type.json referer.json unable_decode_ext.json