Fix tests

tests/api/test_vpcs.py

@@ -15,6 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+from tests.api.base import server, loop
 from tests.utils import asyncio_patch
 from unittest.mock import patch