def handles?(device)
      device  = Pling._convert(device,  :device)
      self.class.handled_types.include?(device.type)
    end
def handles?(device)
      device  = Pling._convert(device,  :device)
      self.class.handled_types.include?(device.type)
    end
Checks if this gateway is able to handle the given device
 @param device [#to_pling_device]
 @return [Boolean]