code: def pass_by_value(self, result: str) -> str:
      return f"Got result by value: '{result}'"
  
file_path: ray/doc/source/serve/doc_code/model_composition/response_by_reference_example.py
imports: import asyncio
  from typing import List
  import ray
  from ray import ObjectRef
  from ray import serve
  from ray.serve.handle import DeploymentHandle, DeploymentResponse
label_desc: Use image node_id 1 for calling the DownstreamModel obj's underlying member method code with example usage: obj.pass_by_value(result) and returns: str, result, str