Add TreeWalker implementation
Add TreeWalker implementation

devpunks/snuggsi,devpunks/snuggsi,snuggs/snuggsi,snuggs/snuggsi,devpunks/snuggsi,devpunks/snuggsi,snuggs/snuggsi,devpunks/snuggsi,snuggs/snuggsi