code: def iou(  # type: ignore
      y_true: pd.DataFrame, y_pred: pd.DataFrame
  ) -> Dict[str, float]:
      ...
  
imports: from typing import Dict, List, Tuple, Union, overload
  import pandas
  from ..aggregator import AndAggregator, OrAggregator
  from ..data import validate_events
label_desc: Use image node_id 18 for calling a global function with example usage: iou(y_true, y_pred) without return types