code: def assertDutTraceDoesNotContain(dut, message, bench):
      
      if not hasattr(bench, "verify_trace"):
          raise AttributeError("Bench object does not contain verify_trace method!")
      if bench.verify_trace(dut, message, False):
          raise TestStepFail('Assert: Message(s) "%s" in response' % message)
docs: Raise TestStepFail if bench.verify_trace does not find message from dut traces.
  
      :param dut: Dut object.
      :param message: Message to look for.
      :param: Bench, must contain verify_trace method.
      :raises: AttributeError if bench does not contain verify_trace method.
      TestStepFail if verify_trace returns True.