code: def __str__(self):
      return self.__class__.__name__
  
file_path: Theano/doc/hpcs2011_tutorial/double_op.py
imports: from __future__ import absolute_import, print_function, division
  import numpy
  import theano
label_desc: Use image node_id 3 for calling the DoubleOp obj's underlying member method code with example usage: obj.__str__() and returns: self