code: def get_display_names(self, **kwargs) -> List[str]:
      names = [f.get_display_name(**kwargs) for f in self.children]
      return names
  
imports: import hashlib
  import itertools
  from typing import Dict, List, Optional, Tuple, Union
  import numpy
  import pandas
  from pandas._typing import DtypeObj
  from upgini.autofe.all_operands import find_op
  from upgini.autofe.operand import Operand, PandasOperand
label_desc: Use image node_id 3 for calling the FeatureGroup obj's underlying member method code with example usage: obj.get_display_names() and returns: names