code: def subtract(self, input: int) -> int:
      from test_module.test import one
  
      return input - one()
  
file_path: ray/python/ray/serve/tests/test_config_files/test_dag/dir/subdir/a/add_and_sub.py
imports: from enum import Enum
  import starlette.requests
  from ray import serve
  from ray.serve.handle import DeploymentHandle
label_desc: Use image node_id 1 for calling the Subtract obj's underlying member method code with example usage: obj.subtract(input) and returns: unknown