text: from keras import Model
  from keras.utils import multi_gpu_model
  
  class ModelMGPU(Model):
  
      def __init__(self, ser_model, gpus):
          pmodel = multi_gpu_model(ser_model, gpus)
          self.__dict__.update(pmodel.__dict__)
          self._smodel = ser_model
  
      def __getattribute__(self, attrname):
          '''
          Override load and save methods to be used from the serial-model. The
          serial-model holds references to the weights in the multi-gpu model.
          '''
          if 'load' in attrname or 'save' in attrname:
              return getattr(self._smodel, attrname)
  
          return super(ModelMGPU, self).__getattribute__(attrname)
  