code: def test_all_none(self):
      assert parse_runtime_env_args() == {}
  
file_path: ray/python/ray/dashboard/modules/tests/test_dashboard_sdk.py
imports: import pytest
  import sys
  import os
  from ray.dashboard.modules.dashboard_sdk import parse_runtime_env_args, parse_cluster_info
label_desc: Use image node_id 6 for calling the TestParseRuntimeEnvArgs obj's underlying member method code with example usage: obj.test_all_none() without return types