def setup(self, node):
        self._caller = sys._getframe(2)
        self._seen_items = set()
        self._cant_maximize = {}
Adds a root node to the tree. The new root node will be the new
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/layout/dock_layout.py/DockLayoutValidator.setup--crossover with--dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node.add_root