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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def output_callback(self, line, kill_switch):
 """Set status of openvpn according to what we process"""

        self.notifications += line + "\n"

        if "Initialization Sequence Completed" in line:
            self.started = True
        if "ERROR:" in line or "Cannot resolve host address:" in line:
            self.error = True
        if "process exiting" in line:
            self.stopped = True