def PushBack(self, string="", **_):
    self.buffer = string + self.buffer
    self.processed_buffer = self.processed_buffer[:-len(string)]
The decorator under test.
dataset/ETHPy150Open google/grr/grr/lib/lexer.py/Lexer.PushBack--crossover with--dataset/ETHPy150Open mozilla/moztrap/tests/view/lists/test_actions.py/ActionsTest.actions