code: def input_var(self):
      InputTensorType = theano.tensor.TensorType(
          "float64",
          broadcastable=(False, False, True, False, False),
          name="DimShuffleTestTensor",
      )
      return InputTensorType(name="x")
  
imports: import numpy
  import pytest
  import theano
  from mock import Mock
label_desc: Use image node_id 2 for calling the TestDimshuffleLayer obj's underlying member method code with example usage: obj.input_var() and returns: InputTensorType