def is_instrumented(instance, key):
    return manager_of_class(instance.__class__).\
        is_instrumented(key, search=True)
Convert IMAP4 flags response to python tuple.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/orm/instrumentation.py/is_instrumented--crossover with--dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/imaplib.py/ParseFlags