code: def test_nested_scopes(self):
      self.assertEqual(nester(), 3)
  
file_path: cpython/Lib/test/test_future_stmt/test_future_single_import.py
imports: from __future__ import nested_scopes
  from __future__ import division
  import unittest
label_desc: Use image node_id 3 for calling the TestFuture obj's underlying member method code with example usage: obj.test_nested_scopes() without return types