No worries 
Glad to help
Yes, there are so many attack points to the same solution but that also makes it so hard to investigate and create a solution of we don’t have all parameters of inputs and outputs 
The connection in is Document.Blocks which looks like a full dump of the document’s BlockTable - so this will have everything that the document classifies as a BlockTableRecord - like model space and papaer space which are special blocks, it will probably also have xrefs (which are blocks).
See BlockTableRecord Class for details.
AutoCAD was into blocks way before Minecraft
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