def test_in():
    schema = Schema({"color": In(frozenset(["blue", "red", "yellow"]))})
    schema({"color": "blue"})
Utility function to turn an ErrorDict into a dict of lists of strings.
dataset/ETHPy150Open alecthomas/voluptuous/voluptuous/tests/tests.py/test_in--crossover with--dataset/ETHPy150Open funkybob/django-nap/nap/utils/__init__.py/flatten_errors