class_docstr: Context manager to set and get gRPC context.
  
  This class implements most of the methods from ServicerContext
  (see: https://grpc.github.io/grpc/python/grpc.html#grpc.ServicerContext). It's
  serializable and can be passed with the request to be used on the deployment.
class_docstr_tok: ["Context","manager","to","set","and","get","gRPC","context",".","This","class","implements","most","of","the","methods","from","ServicerContext","(","see",":","https",":","\/\/grpc.github.io\/grpc\/python\/grpc.html","#","grpc.ServicerContext",")",".","It's","serializable","and","can","be","passed","with","the","request","to","be","used","on","the","deployment","."]
code: def trailing_metadata(self) -> List[Tuple[str, str]]:
      return self._trailing_metadata
  
file_path: ray/python/ray/serve/grpc_util.py
imports: from typing import Any, Dict, List, Optional, Tuple
  import grpc
  from ray.util.annotations import PublicAPI
label_desc: Use image node_id 9 for calling the RayServegRPCContext obj's underlying member method code with example usage: obj.trailing_metadata() and returns: self