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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 add_sync_callback(self, callback_cycles, callback):
 """ Add a CPU cycle triggered callback """

        self.sync_callbacks_cyles[callback] = 0
        self.sync_callbacks.append([callback_cycles, callback])
        if self.quickest_sync_callback_cycles is None or \
                        self.quickest_sync_callback_cycles > callback_cycles:
            self.quickest_sync_callback_cycles = callback_cycles