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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 pickle_dump(self):
 """ Save the status of the object in pickle format. Returns 0 if success """

        if self.has_chrooted:
            warnings.warn("Cannot pickle_dump since we have chrooted from %s" % self.has_chrooted)
            return -1

        #if self.in_spectator_mode:
        #    warnings.warn("Cannot pickle_dump since flow is in_spectator_mode")
        #    return -2

        protocol = self.pickle_protocol

        # Atomic transaction with FileLock.
        with FileLock(self.pickle_file):
            with AtomicFile(self.pickle_file, mode="wb") as fh:
                pmg_pickle_dump(self, fh, protocol=protocol)

        return 0