filter nodes in a TreeEditor

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filter nodes in a TreeEditor

I'm wondering how to go about filtering a TreeEditor, such that only nodes
 that have X condition are viewed. Honestly, I'm not yet traitsui expert enough
 to implement this. My guess is that I need to add some methods to
TreeNodeObject ( eg treenode.can_show_node ) and TreeEditor
 ( eg tree_editor.filter_nodes ). Perhaps someone might be able to steer me in
 the right direction?



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