class_docstr: Client for remote Megatron-LM server.
  
  This client expects an external Megatron-LM server to be run on localhost:5000. See the
  Megatron-LM respository for documentation on starting a Megatron text generation server:
  
  https://github.com/NVIDIA/Megatron-LM#gpt-text-generation
code: def make_request(self, request: Request) -> RequestResult:
      try:
          return self._make_request(request)
      except Exception as e:
          return RequestResult(
              success=False,
              cached=False,
              error=f"MegatronClient Error: {e}\n\n{traceback.format_exc()}",
              completions=[],
              embedding=[],
          )
  
file_path: H2O/h2o_hf/helm/src/helm/proxy/clients/megatron_client.py
imports: import json
  import requests
  from typing import Any, Dict, List
  import traceback
  from helm.common.request import EMBEDDING_UNAVAILABLE_REQUEST_RESULT, Request, RequestResult, Sequence, Token
  from helm.common.tokenization_request import TokenizationRequest
  from helm.proxy.clients.huggingface_client import HuggingFaceClient
  from helm.proxy.clients.client import Client, wrap_request_time, truncate_sequence
label_desc: Use image node_id 4 for calling the MegatronClient obj's underlying member method code with example usage: obj.make_request(request) and returns: self, RequestResult