def on_binop(self, node):    # ('left', 'op', 'right')
        return OPERATORS[node.op.__class__](self.run(node.left),
                                            self.run(node.right))
Lists the previous versions of a directory backed up using Salt's :doc:`file
dataset/ETHPy150Open xraypy/xraylarch/lib/interpreter.py/Interpreter.on_binop--crossover with--dataset/ETHPy150Open saltstack/salt/salt/modules/file.py/list_backups_dir