def allocate_ids(self, key, size=None, max=None):
    return self.async_allocate_ids(None, key, size, max).get_result()
Synchronous AllocateIds operation.
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/datastore/datastore_rpc.py/Connection.allocate_ids