def test_undefined(value):
    return isinstance(value, Undefined)
tile has been unrendered, or never was rendered, but is no longer managed by this manager
dataset/ETHPy150Open GeekTrainer/Flask/Work/Trivia - Module 5/env/Lib/site-packages/jinja2/tests.py/test_undefined--crossover with--dataset/ETHPy150Open Craig-Macomber/Panda3D-Terrain-System/tileUtil.py/NodePathBakeryManager.destroy