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Collapse tree on startup

MrE-OracleAug 5 2021

I'd like to start with my tree collapse at the root. Looking at the API, it seems like I should initialize with:
$( ".selector" ).treeView( "collapseAll" );
but where does this code run?
If I set this in the treeview Javascript Initialization area:
I get:
image.pngif i set it on the page itself, it doesn't work because the tree is lazy loaded.
So where is it supposed to go? How is it supposed to work?

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Added on Aug 5 2021
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