def has_key(key):
    store = load()
    return key in store
This will be inserted into the page context under
dataset/ETHPy150Open saltstack/salt/salt/modules/data.py/has_key--crossover with--dataset/ETHPy150Open dimagi/commcare-hq/corehq/apps/styleguide/views/__init__.py/BaseStyleGuideArticleView.navigation_name