text: #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  
  import abc
  import six
  
  
  @six.add_metaclass(abc.ABCMeta)
  class GenericDriver(object):
  
      @abc.abstractmethod
      def discover(self):
          """Discover a specified accelerator.
  
          :return: the list of driver device objs
          """
          pass
  
      @abc.abstractmethod
      def update(self, control_path, image_path):
          """Update the device firmware with specific image.
  
          :param control_path: the image update control path of device.
          :param image_path: The image path of the firmware binary.
  
          :return: True if update successfully otherwise False
          """
          pass
  
      @abc.abstractmethod
      def get_stats(self):
          """Collects device stats.
  
          It is used to collect information from the device about the device
          capabilities. Such as performance info like temprature, power, volt,
          packet_count info.
  
          :return: The stats info of the device. The format should follow the
          current Cyborg device-deploy-accelerator model
          """
          pass
  