text: import os
  from mindware.components.feature_engineering.transformations.base_transformer import Transformer
  from mindware.components.utils.class_loader import find_components, ThirdPartyComponents
  
  """
  Load the buildin classifiers.
  """
  rescaler_directory = os.path.split(__file__)[0]
  _rescaler = find_components(__package__, rescaler_directory, Transformer)
  
  """
  Load third-party classifiers. 
  """
  _addons = ThirdPartyComponents(Transformer)
  
  
  def add_rescaler(rescaler):
      _addons.add_component(rescaler)
  