code: def test_nonascii_in_function_body(ray_start_shared_local_modes):
      @ray.remote
      def return_a_greek_char():
          return "φ"
  
      assert ray.get(return_a_greek_char.remote()) == "φ"
  
imports: import logging
  import os
  import pickle
  import random
  import sys
  import time
  import pytest
  import ray
  import ray.cluster_utils
  from ray._private.test_utils import SignalActor, client_test_enabled, get_error_message, run_string_as_driver
label_desc: Use image node_id 30 for calling a global function with example usage: test_nonascii_in_function_body(ray_start_shared_local_modes) and returns: str