def get_stats_flow(match, table_id, out_port, callback,
                       timeout_callback=None, timeout=None):
Subtract two datetimes, or a datetime and a timedelta.
dataset/ETHPy150Open rlenglet/openfaucet/src/openfaucet/ofcontroller.py/IOpenflowControllerStub.get_stats_flow--crossover with--dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/datetime.py/datetime.__sub__