A visalization of the full graph stored can be achieved by using the nice web based tool Graphviz. http://magjac.com/graphviz-visual-editor/
Simply paste the graph code returned from the Nest client command GetGraph() into the web interface.
See also https://graphviz.org
This tool is suitable to verifying that the Parts stored end up and related to each other as intended. Larger structures can quickly become challenging for the human eye to overview though.
