class_docstr: This optimizer adds a provided feature to the function graph.
code: def __init__(self, feature):
      self.feature = feature
  
imports: from __future__ import absolute_import, print_function, division
  import logging
  import warnings
  import theano
  from theano import gof
  import theano.gof.vm
  from theano import config
  from six import string_types
  from theano.compile.function_module import Supervisor
label_desc: Use image node_id 1 to create a new AddFeatureOptimizer object from inherited base classes: gof with example: obj = AddFeatureOptimizer(feature)