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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 main(self):
 """this main routine sets up the signal handlers, the source and destination crashstorage systems at the theaded task manager. That starts a flock of threads that are ready to shepherd crashes from the source to the destination."""


        self._setup_task_manager()
        self._setup_source_and_destination()
        self.task_manager.blocking_start(waiting_func=self.waiting_func)
        self.close()
        self.config.logger.info('done.')