code: def test_mistral_anyscale_stream():
      litellm.set_verbose = False
      response = completion(
          model="anyscale/mistralai/Mistral-7B-Instruct-v0.1",
          messages=[{"content": "hello, good morning", "role": "user"}],
          stream=True,
      )
      for chunk in response:
          # print(chunk)
          print(chunk["choices"][0]["delta"].get("content", ""), end="")
  
imports: import sys, os
  import traceback
  from dotenv import load_dotenv
  import os, io
  import pytest
  import litellm
  from litellm import embedding, completion, completion_cost, Timeout
  from litellm import RateLimitError
  import openai
label_desc: Use image node_id 50 for calling a global function with example usage: test_mistral_anyscale_stream() without return types