def get_instance(self, instance_id):
    if instance_id == 0:
      return self._instance
    raise request_info.InvalidInstanceIdError()
Comprehensive test of ranking calculations, done on real world
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/devappserver2/module.py/ExternalModule.get_instance--crossover with--dataset/ETHPy150Open jolynch/mit-tab/mittab/libs/tests/test_tab_logic.py/TestRankingLogic.test_debater_score