text: """
      Copyright 2019 Samsung SDS
      
      Licensed under the Apache License, Version 2.0 (the "License");
      you may not use this file except in compliance with the License.
      You may obtain a copy of the License at
      
          http://www.apache.org/licenses/LICENSE-2.0
      
      Unless required by applicable law or agreed to in writing, software
      distributed under the License is distributed on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      See the License for the specific language governing permissions and
      limitations under the License.
  """
  
  from .add_expression_column import add_expression_column
  from .add_expression_column import add_expression_column_if
  from .scale import scale
  from .scale import scale_model
  from .encoder import label_encoder
  from .encoder import label_encoder_model
  from .encoder import one_hot_encoder
  from .encoder import one_hot_encoder_model
  from .pca import pca
  from .pca import pca_model
  from .shift import add_shift
  from .extraction import add_row_number
  from .extraction import discretize_quantile
  from .extraction import binarizer
  from .extraction import capitalize_variable
  from .bucketizer import bucketizer
  from .moving_average import ewma, moving_average
  from .lda import lda
  from .lda import lda_model
  from .replace_string import replace_string
  from .array_column_conversion import columns_to_array
  from .array_column_conversion import array_to_columns
  from .string_split import string_split