code: def create_generic_instances(self, instances):
          
          generic_instances = []
  
          for instance in instances:
              istio_mesh_instance = self._create_istio_mesh_instance(instance)
              process_mixer_instance = self._create_process_mixer_instance(instance)
  
              generic_instances.extend([istio_mesh_instance, process_mixer_instance])
  
          return generic_instances
docs: Generalize each (single) Istio instance into two OpenMetricsBaseCheck instances