code: def test_hasattr(self):
      self.assertIs(hasattr([], "append"), True)
      self.assertIs(hasattr([], "wobble"), False)
  
imports: import unittest
  from test.support import os_helper
  import os
label_desc: Use image node_id 11 for calling the BoolTest obj's underlying member method code with example usage: obj.test_hasattr() without return types