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> #include "sim/serialize.hh"
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< class Checkpoint;
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< void serialize(const std::string &base, std::ostream &os);
< void unserialize(const std::string &base, Checkpoint *cp,
< const std::string &section);
---
> void serialize(const std::string &base, CheckpointOut &cp) const;
> void unserialize(const std::string &base, CheckpointIn &cp);