def _collection_default_options(self, name, **kargs):
        wc = (self.write_concern
              if self.write_concern.acknowledged else WriteConcern())
        return self.get_collection(
            name, codec_options=DEFAULT_CODEC_OPTIONS,
            read_preference=ReadPreference.PRIMARY,
            write_concern=wc)
Load a configuration file and generate importer and exporter classes.
dataset/ETHPy150Open mongodb/mongo-python-driver/pymongo/database.py/Database._collection_default_options--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/bulkload/bulkloader_parser.py/load_config