docs: def _collection_default_options(self, name, **kargs):
          """Get a Collection instance with the default settings."""
          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)