code: def find_description(self, name):
          "Find a description for the given appliance name."
          for desc in self.virtual_system_descriptions:
              values = desc.get_values_by_type(DescType.name,
                                               DescValueType.original)
              if name in values:
                  break
          else:
              raise Exception("Failed to find description for %s" % name)
          return desf find_description(self, name):
          "Find a description for the given appliance name."
          for desc in self.virtual_system_descriptions:
              values = desc.get_values_by_type(DescType.name,
                                               DescValueType.original)
              if name in values:
                  break
          else:
              raise Exception("Failed to find description for %s" % name)
          return desc
docs: Find a description for the given appliance name.