def valid_for_scope(self, url):
    return False
Called when a tree item has been collapsed.
dataset/ETHPy150Open bradfitz/addressbooker/atom/http_interface.py/GenericToken.valid_for_scope--crossover with--dataset/ETHPy150Open enthought/pyface/pyface/viewer/tree_viewer.py/TreeViewer._on_tree_item_collapsed