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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 create_notification_plan(self, label=None, name=None, critical_state=None, ok_state=None, warning_state=None):
 """ Creates a notification plan to be executed when a monitoring check triggers an alarm. """

        return self._notification_plan_manager.create(label=label, name=name,
                critical_state=critical_state, ok_state=ok_state,
                warning_state=warning_state)