+class JujuApplicationNotFound(Exception):
+ """The Application cannot be found."""
+
+
+class JujuLeaderUnitNotFound(Exception):
+ """The Application cannot be found."""
+
+
+class JujuActionNotFound(Exception):
+ """The Action cannot be found."""
+
+
+class JujuMachineNotFound(Exception):
+ """The machine cannot be found."""
+
+
+class JujuK8sProxycharmNotSupported(Exception):
+ """K8s Proxy Charms not supported in this installation."""
+
+