old_contents: """
  Gathers all transformers in one place for convenient imports
  """
  from __future__ import print_function
  from __future__ import division
  from __future__ import unicode_literals
  
  from deepchem.trans.transformers import undo_transforms
  from deepchem.trans.transformers import undo_grad_transforms
  from deepchem.trans.transformers import LogTransformer
  from deepchem.trans.transformers import ClippingTransformer
  from deepchem.trans.transformers import NormalizationTransformer
  from deepchem.trans.transformers import BalancingTransformer
  from deepchem.trans.transformers import CDFTransformer
  from deepchem.trans.transformers import PowerTransformer
  from deepchem.trans.transformers import CoulombFitTransformer
  from deepchem.trans.transformers import IRVTransformer
  from deepchem.trans.transformers import OneHotTransformer
  
new_contents: """
  Gathers all transformers in one place for convenient imports
  """
  from __future__ import print_function
  from __future__ import division
  from __future__ import unicode_literals
  
  from deepchem.trans.transformers import undo_transforms
  from deepchem.trans.transformers import undo_grad_transforms
  from deepchem.trans.transformers import LogTransformer
  from deepchem.trans.transformers import ClippingTransformer
  from deepchem.trans.transformers import NormalizationTransformer
  from deepchem.trans.transformers import BalancingTransformer
  from deepchem.trans.transformers import CDFTransformer
  from deepchem.trans.transformers import PowerTransformer
  from deepchem.trans.transformers import CoulombFitTransformer
  from deepchem.trans.transformers import IRVTransformer
  
subject: Remove OneHotTransformer