adfox hb params

                {
                    bidder: 'myTarget',
                    params: {
                        placementId: <%ext_adunit_id%>,
                    }
                },                {
                    bidder: 'betweenDigital',
                    params: {
                        placementId: <%ext_ad_unit_id%>,
                    }
                },                {
                    bidder: 'buzzoola',
                    params: {
                        placementId: <%ext_ad_unit_id%>,
                    }
                },                {
                    bidder: 'hpmd',
                    params: {
                        placementId: <%ext_adunit_id%>,
                    }
                },                {
                    bidder: 'criteo',
                    params: {
                        placementId: <%ext_ad_unit_id%>,
                    }