class_docstr: Abstract Base class for Feature transformers.
docstr: :return: optional parameters to be set into config
code: def _get_optional_parameters(self):
      """
      :return: optional parameters to be set into config
      """
      return set()
  
file_path: analytics-zoo/pyzoo/zoo/chronos/autots/deprecated/feature/abstract.py
imports: from abc import ABC, abstractmethod
label_desc: Use image node_id 6 for calling the BaseFeatureTransformer obj's underlying member method code with example usage: obj._get_optional_parameters() and returns: set