@classmethod
  def from_json(cls, json_in):
    counters_map = cls()
    counters_map.counters = json_in["counters"]
    return counters_map
@type filename: C{str}
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/mapreduce/model.py/CountersMap.from_json--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/cred/checkers.py/FilePasswordDB.__init__