Onos charm now uses assumes.

Author: Juan Tirado

examples/charms/onos.charm

@@ -21,5 +21,8 @@ tags:
   - misc
   - application_development
 subordinate: false
+# check: https://juju.is/docs/sdk/assumes for more details 
 assumes:
-  - juju >= 2.9
+  - any_of:
+    - juju >= 2.9
+    - k8s-api

examples/charms/ubuntu/metadata.yaml

@@ -674,7 +674,6 @@ def from_json(cls, data):
             except TypeError:
                 raise
         if isinstance(data, list):
-            # WARNING: not tested with any-all
             # check: https://juju.is/docs/sdk/assumes
             # assumes are in the form of a list
             d = {}