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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 start_tracing_process(self, pid):
 """ Start tracing mode for all threads in the given process. @type pid: int @param pid: Global ID of process to start tracing. """

        for thread in self.system.get_process(pid).iter_threads():
            self.__start_tracing(thread)