code: def two_unknown(self):
      from lasagne.layers.input import InputLayer
  
      shape = (16, 3, None, None, 10)
      return (
          InputLayer(shape),
          theano.shared(np.ones((16, 3, 5, 7, 10))),
      )
  
imports: import numpy
  import pytest
  import theano
  from mock import Mock
label_desc: Use image node_id 2 for calling the TestReshapeLayer obj's underlying member method code with example usage: obj.two_unknown() and returns: InputLayer,  theano