code: def _get_summary_optional_params(
      class_names: Optional[List[str]] = None,
      exclude: Optional[List[int]] = None,
      top: Optional[int] = None,
  ):
      """Takes in optional args and returns good values for them if they are None for summary functions."""
      if exclude is None:
          exclude = []
      if top is None:
          top = 20
      return class_names, exclude, top
  
imports: from typing import Optional, List
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: _get_summary_optional_params(class_names, exclude, top) and returns: class_names,  exclude,  top