code: def __str__(self):
      return "scratchpad" + str(self.__dict__)
  
imports: from __future__ import absolute_import, print_function, division
  import linecache
  import sys
  import traceback
  import numpy
  from six import iteritems, integer_types, string_types, with_metaclass
  from six.moves import StringIO
  from theano import config
  from theano.compat import PY3
label_desc: Use image node_id 3 for calling the scratchpad obj's underlying member method code with example usage: obj.__str__() and returns: unknown