code: def __init__(self, center=None, **kw):
      super().__init__(_center=center, **kw)
  
imports: from collections import namedtuple
  from functools import partial
  import numpy
  import pandas
  from ....None import opcodes
  from ....serialization.serializables import BoolField
  from ..aggregation import BaseDataFrameExpandingAgg
label_desc: Use image node_id 1 to create a new DataFrameExpandingAgg object from inherited base classes: BaseDataFrameExpandingAgg with example: obj = DataFrameExpandingAgg(center)