DiffSetFormat.txt

NodeChange:
 * Status [String; one of "added", "removed", "changed"]
 * InstanceGuid: [String]
 * Type: [String; omitted if status is "removed"]
 * Location: [Location; omitted if status is "removed"]
 * MetaData [MetaData; just the inspect portion, omitted if status is "removed"]

PortChange:
 * Status [String; one of "added", "removed", "changed"]
 * InstanceGuid: [String]
 * ParentGuid: [String]
 * MetaData [MetaData; just the inspect portion, omitted if status is "removed"]

EdgeChange:
 * Status [String; one of "added", "removed"]
 * InstanceGuid: [String]
 * SrcGuid: [String; omitted if status is "removed"]
 * DstGuid: [String; omitted if status is "removed"]

<DiffSet>
 <NodeChange Status="" InstanceGuid="" Type="">
  <Location>
   <X>34</X>
   <Y>11</Y>
  </Location>
  <MetaData>
   <Inspect>...</Inspect>
  </MetaData>
 </NodeChange>
 <PortChange Status="" ParentGuid="" InstanceGuid="">
  <MetaData>
   <Inspect>...</Inspect>
  </MetaData>
 </PortChange>
 <EdgeChange Status="" InstanceGuid="" SrcGuid="" DstGuid="">
 </EdgeChange>
 ...
 <MetaData>
  <Inspect>...</Inspect>
 </MetaData>
</DiffSet>