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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 get_action(self, key):
 """ returns the action to perform on this key based on its state before the last sync. """

        index_local_timestamp = self.get_index_local_timestamp(key)
        real_local_timestamp = self.get_real_local_timestamp(key)
        remote_timestamp = self.get_remote_timestamp(key)
        return get_sync_state(
            index_local_timestamp, real_local_timestamp, remote_timestamp
        )