Cascading dump()

[mottosso]

How about Node.dump() returns a dictionary of all contained children?
At the moment, it only returns values, no children.

This could be used for debugging, showing what is currently stored in-memory, and what would be written to disk if flushed.

[mottosso]

Alternatively, how about flush() providing this feature? It already traverses a hierarchy when writing to disk, with it's simulate attribute it could instead dump what it was about to flush to the user.