text: from pyspark import sql
  from pyspark.sql import functions
  
  from cape_privacy.spark.transformations import base as tfm
  
  
  def transformer(transformation: tfm.Transformation, df: sql.DataFrame, field_name: str):
      field_column = functions.col(field_name)
      return df.withColumn(field_name, transformation(field_column))
  