code: def actor_def(self):
      if self._cached_actor_def is None:
          assert self.actor_name is not None
  
          # Break circular import :(.
          from ray.serve._private.replica import ReplicaActor
  
          # Dynamically create a new class with custom name here so Ray picks it up
          # correctly in actor metadata table and observability stack.
          self._cached_actor_def = ray.remote(
              **REPLICA_DEFAULT_ACTOR_OPTIONS
          )(
              type(
                  self.actor_name,
                  (ReplicaActor,),
                  dict(ReplicaActor.__dict__),
              )
          )
  
      return self._cached_actor_def
  
file_path: ray/python/ray/serve/_private/deployment_info.py
imports: from typing import Any, Dict, Optional
  import ray
  from ray.serve._private.autoscaling_policy import AutoscalingPolicyManager
  from ray.serve._private.common import TargetCapacityDirection
  from ray.serve._private.config import DeploymentConfig, ReplicaConfig
  from ray.serve._private.constants import REPLICA_CONTROL_PLANE_CONCURRENCY_GROUP
  from ray.serve.generated.serve_pb2 import DeploymentInfo
  from ray.serve.generated.serve_pb2 import TargetCapacityDirection
label_desc: Use image node_id 6 for calling the DeploymentInfo obj's underlying member method code with example usage: obj.actor_def() and returns: self