code: def test_for(self):
      self.assertHasSymbols(
          "for i in x:\n    a.b = 1", {"a", "x"}, ast.Load
      )
      self.assertHasSymbols(
          "for i in x:\n    a.b = 1", {"i"}, ast.Store
      )
  
file_path: turicreate/src/python/turicreate/meta/asttools/tests/test_symbol_visitor.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import ast
  from ...asttools.visitors.symbol_visitor import get_symbols
label_desc: Use image node_id 7 for calling the Test obj's underlying member method code with example usage: obj.test_for() without return types