code: def t(self, before, expected):
      actual, literals = strip_string_literals(before, prefix="_L")
      self.assertEqual(expected, actual)
      for key, value in literals.items():
          actual = actual.replace(key, value)
      self.assertEqual(before, actual)
  
file_path: catboost/contrib/tools/cython/Cython/Build/Tests/TestStripLiterals.py
imports: from Cython.Build.Dependencies import strip_string_literals
  from Cython.TestUtils import CythonTest
label_desc: Use image node_id 1 for calling the TestStripLiterals obj's underlying member method code with example usage: obj.t(before, expected) without return types