code: def test_hashable(self):
      d = {QN("a"): "a", QN("b"): "b"}
      self.assertEqual(d[QN("a")], "a")
      self.assertEqual(d[QN("b")], "b")
      self.assertNotIn(QN("c"), d)
  
imports: import textwrap
  from tensorflow.python.autograph.pyct import anno
  from tensorflow.python.autograph.pyct import parser
  from tensorflow.python.autograph.pyct import qual_names
  from tensorflow.python.autograph.pyct.qual_names import QN
  from tensorflow.python.autograph.pyct.qual_names import resolve
  from tensorflow.python.platform import test
label_desc: Use image node_id 6 for calling the QNTest obj's underlying member method code with example usage: obj.test_hashable() without return types