code: def __init__(self, one_d):
      self.one_d = one_d
  
imports: import dask.dataframe
  import numpy
  import packaging.version
  import pandas
  import pytest
  import sklearn.compose
  import sklearn.pipeline
  import sklearn.preprocessing
  from sklearn.base import BaseEstimator, clone
  import dask_ml.compose
  import dask_ml.preprocessing
  from dask_ml._compat import SK_VERSION
label_desc: Use image node_id 1 to create a new SumTransformer object from inherited base classes: BaseEstimator with example: obj = SumTransformer(one_d)