def _pop_toggle(key, attributes, context):
    value = parse_trool(attributes.pop(key, Maybe))
    forced = value is True  # setting key="on" is a "forced" setting
    if value is Maybe:
        value = parse_trool(context[key])
    if value is Maybe:
        value = _default_context[key]
    return value, forced
Update a disk in a given guest
dataset/ETHPy150Open jek/flatland/flatland/out/generic.py/_pop_toggle--crossover with--dataset/ETHPy150Open locaweb/simplestack/src/simplestack/server.py/disk_update