code: def real_time():
      if get_global_manager is None:
          return {"cudf-spilled": None}
      mgr = get_global_manager()
      if mgr is None:
          return {"cudf-spilled": None}
  
      totals = mgr.statistics.spill_totals
  
      return {
          "cudf-spilled": totals.get(("gpu", "cpu"), (0,))[0]
          - totals.get(("cpu", "gpu"), (0,))[0]
      }
  
label_desc: Use image node_id 1 for calling a global function with example usage: real_time() and returns: dict, dict, dict