code: def start(self, channel=None):
          
  
          super(EmulatedDevice, self).start(channel)
          self.emulator.start()
docs: Start this emulated device.
  
          This triggers the controller to call start on all peripheral tiles in
          the device to make sure they start after the controller does and then
          it waits on each one to make sure they have finished initializing
          before returning.
  
          Args:
              channel (IOTilePushChannel): the channel with a stream and trace
                  routine for streaming and tracing data through a VirtualInterface