def filter_lag( source):
    for server, worker, password in source:
        if (server, worker, password) not in lagged:
            yield (server, worker, password)
Class to manage the file-access history
dataset/ETHPy150Open c00w/bitHopper/bitHopper/LaggingLogic/__init__.py/filter_lag--crossover with--dataset/ETHPy150Open FichteFoll/FileHistory/file_history.py/FileHistory.__init__