code: def test_is_contiguous(self):
      a = testing.shaped_arange((2, 3, 4))
      assert a.flags.c_contiguous is True
      b = a.transpose(2, 0, 1)
      assert b.flags.c_contiguous is False
      c = a[::-1]
      assert c.flags.c_contiguous is False
      d = a[:, :, ::2]
      assert d.flags.c_contiguous is False
  
imports: import unittest
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestArrayContiguity obj's underlying member method code with example usage: obj.test_is_contiguous() without return types