TransitionTier string `msg:"tt"`
	// TransitionVersionID stores a version ID of the object associate
	// with the remote tier.
	TransitionVersionID string `msg:"tv"`
	// ExpireRestored indicates that the restored object is to be expired.
	ExpireRestored bool `msg:"exp"`

	// DataDir of the file
	DataDir string `msg:"dd"`

	// Indicates if this object is still in V1 format.

          "site.jp",
          "site.lg.jp",
          "site.ma",
          "site.mk",
          "site.ne.jp",
          "site.or.jp",
          "site.quick.jp",
          "site.tenki.jp",
          "site.tv",
          "site.us",
          "some.org.mk",
          "stanford.edu",
          "state.ca.us",
          "uomi-online.kir.jp",
          "utenti.blah.it",
          "web.stanford.edu",