code: def _control_ctx():
      if not hasattr(stacks, "control_status"):
          stacks.control_status = [_default_control_status_ctx()]
      return stacks.control_status
  
imports: import enum
  import inspect
  import threading
  from nvidia.dali._autograph.utils import ag_logging
  from nvidia.dali._autograph.utils.all_utils import export_symbol
label_desc: Use image node_id 1 for calling a global function with example usage: _control_ctx() and returns: stacks