code: def test_twice(self):
      assert hasattr(self, "param1")
      assert hasattr(self, "param2")
      assert (self.param1, self.param2) in (
          (1, 3),
          (1, 4),
          (2, 3),
          (2, 4),
      )
  
imports: import unittest
  from chainer import testing
label_desc: Use image node_id 1 for calling the TestParameterizeTwice obj's underlying member method code with example usage: obj.test_twice() without return types