def get_instance(self, request_id):
    raise NotImplementedError()
output check result.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/request_info.py/RequestInfo.get_instance--crossover with--dataset/ETHPy150Open openstack/compass-core/compass/actions/cli.py/BootCLI.output_check_result