def get_multi_async(keys, **ctx_options):
  return [key.get_async(**ctx_options) for key in keys]
Retrieve Credential from file.
dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/model.py/get_multi_async--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/google-api-python-client/oauth2client/file.py/Storage.locked_get