code: def test_inputs_deep(self):
      r1, r2, r5 = MyVariable(1), MyVariable(2), MyVariable(5)
      node = MyOp.make_node(r1, r2)
      node2 = MyOp.make_node(node.outputs[0], r5)
      i = inputs(node2.outputs)
      assert i == [r1, r2, r5], i
  
imports: from __future__ import absolute_import, print_function, division
  from itertools import count
  import pickle
  import unittest
  from nose.plugins.skip import SkipTest
  import numpy
  from theano import sparse, shared, tensor
  from theano.gof.graph import Apply, as_string, clone, general_toposort, inputs, io_toposort, is_same_graph, Variable
  from theano.gof.op import Op
  from theano.gof.type import Type
label_desc: Use image node_id 2 for calling the TestInputs obj's underlying member method code with example usage: obj.test_inputs_deep() without return types