def __init__(self, config_manager, api_request, outfile):
    self._config_manager = config_manager
    self._params = json.loads(api_request.body or '{}')
    self._outfile = outfile
    self._discovery_proxy = DiscoveryApiProxy()
Returns the name of the first field on the profile model that
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver_apiserver.py/DiscoveryService.__init__--crossover with--dataset/ETHPy150Open stephenmcd/mezzanine/mezzanine/accounts/__init__.py/get_profile_user_fieldname