+ def get_size():
+ """Return the length (in bytes) of the data this node represents. For
+ directory nodes, I return the size of the backing store. I return
+ synchronously and do not consult the network, so for mutable objects,
+ I will return the most recently observed size for the object, or None
+ if I don't remember a size. Use get_current_size, which returns a
+ Deferred, if you want more up-to-date information."""
+
+ def get_current_size():
+ """I return a Deferred that fires with the length (in bytes) of the
+ data this node represents.
+ """
+