I am trying to get all the Block References of a Block on the Title Block Layer in a document. But I am getting an empty list when using all objects of the type node. Can someone,
please help with that.
please help with that.
The ‘block’ input port of the last node needs a reference to the space (ModelSpace or PaperSpace).
You can get all Block References in a certain space (not whole drawing). I think you need another approach for that.
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Try this approach
In my title block I added two types of block references, one named circle and one named rectangle, Then I added to title block as a Block instead of Model Space or Paper Space.
And then you can continue to filter out the correct Block reference
I am not sure but I think I model space is giving me all the blocks present in it. Where as what I am looking for is the all the reference of a block inside a document.
Inside the dwg? Do you mean both in model and in paperspace?
That is what I said 
You need a different approach.
Instead of a single block (PaperSpace or ModelSpace) you need to feed it with a list of Layouts. You need the Camber package for this to create a list of Layout blocks.
With the list of Block References you can filter this by name to find the title blocks.
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