@util.positional(1)
def get_all_credential_keys(filename, warn_on_readonly=True):
    multistore = _get_multistore(filename, warn_on_readonly=warn_on_readonly)
    multistore._lock()
    try:
        return multistore._get_all_credential_keys()
    finally:
        multistore._unlock()
Join threads with a 5-minute timeout, assert joins succeeded
dataset/ETHPy150Open google/oauth2client/oauth2client/contrib/multistore_file.py/get_all_credential_keys--crossover with--dataset/ETHPy150Open mongodb/mongo-python-driver/test/utils.py/joinall