code: def print_all_models() -> None:
      """
      Print description of every model in this module.
      """
      model_desc = _get_all_subclasses_from_superclass(
          _Aggregator
      )  # type: Dict[str, Optional[str]]
      for key, value in model_desc.items():
          print("-" * 80)
          print(key)
          print(value)
  
imports: from typing import Dict, Optional
  from .._aggregator_base import _Aggregator
  from .._utils import _get_all_subclasses_from_superclass
  from ._aggregator import AndAggregator, CustomizedAggregator, OrAggregator
label_desc: Use image node_id 1 for calling a global function with example usage: print_all_models() without return types