code: def using_ray_client(address):
      return address.startswith("ray://")
  
file_path: ray/python/ray/tests/test_runtime_env_failure.py
imports: import os
  from unittest import mock
  import pytest
  from ray._private.ray_constants import RAY_RUNTIME_ENV_URI_PIN_EXPIRATION_S_DEFAULT
  from ray._private.runtime_env.packaging import RAY_RUNTIME_ENV_FAIL_DOWNLOAD_FOR_TESTING_ENV_VAR, RAY_RUNTIME_ENV_FAIL_UPLOAD_FOR_TESTING_ENV_VAR
  import ray
  from ray.exceptions import RuntimeEnvSetupError
label_desc: Use image node_id 1 for calling a global function with example usage: using_ray_client(address) and returns: address