code: def testShapes(self):
      a1 = numpy.array([(0, 1), (2, 3)])
      a1_shape = (1, 4)
      a1 = shapes_ext.reshape(a1, a1_shape)
      self.assertEqual(a1_shape, a1.shape)
  
imports: import shapes_ext
  import unittest
  import numpy
label_desc: Use image node_id 1 for calling the TestShapes obj's underlying member method code with example usage: obj.testShapes() without return types