def __init__(self, **kwargs):
    for key in kwargs:
      setattr(self, key, kwargs[key])
destination is a (host, port, instance) triple
dataset/ETHPy150Open google/simian/src/tests/simian/mac/common/test_base.py/GenericContainer.__init__--crossover with--dataset/ETHPy150Open tmm1/graphite/carbon/lib/carbon/routers.py/DatapointRouter.addDestination