code: def test_new_symbol_avoids_duplicates(self):
      namer = naming.Namer({})
      self.assertEqual("temp", namer.new_symbol("temp", set()))
      self.assertEqual("temp_1", namer.new_symbol("temp", set()))
      self.assertItemsEqual(("temp", "temp_1"), namer.generated_names)
  
imports: from tensorflow.python.autograph.pyct import naming
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the NamerTest obj's underlying member method code with example usage: obj.test_new_symbol_avoids_duplicates() without return types