docstr: Process data into a form that ATM can use. 
code: def fit_transform(self, data):
      """Process data into a form that ATM can use."""
      self.fit(data)
      return self.transform(data)
  
file_path: ATM/atm/encoder.py
imports: from __future__ import division, unicode_literals
  from builtins import object
  import numpy
  from sklearn.preprocessing import LabelEncoder, OneHotEncoder
label_desc: Use image node_id 4 for calling the DataEncoder obj's underlying member method code with example usage: obj.fit_transform(data) and returns: self