code: def init_global_config(config_file: str):
      """
      Initiate the global configuration singleton.
      """
      global config
      if not config:
          _init_global_config(config_file)
  
file_path: ray/release/ray_release/configs/global_config.py
imports: import os
  import yaml
  from typing_extensions import TypedDict
label_desc: Use image node_id 1 for calling a global function with example usage: init_global_config(config_file) without return types