add imports

zaza/openstack/charm_tests/gnocchi/tests.py

@@ -16,12 +16,15 @@
 
 """Encapsulate Gnocchi testing."""
 
+import base64
 import boto3
 import logging
 import pprint
 from gnocchiclient.v1 import client as gnocchi_client
 
+import zaza.model as model
 import zaza.openstack.charm_tests.test_utils as test_utils
+import zaza.openstack.utilities as utilities
 import zaza.openstack.utilities.openstack as openstack_utils
 
 
@@ -144,4 +147,4 @@ class GnocchiExternalCATest(test_utils.OpenStackBaseTest):
         logging.info("Validating that the link {} is created in \
                      {}".format(linked_cert_name, linked_cert_location))
         result = model.run_on_unit('gnocchi/0', cmd)
-        self.assertEqual(result['Code'], '0')
+        self.assertEqual(result['Code'], '0')