code: def get_pin_state(self, pin, cb=None):
          
          task = asyncio.ensure_future(self.core.get_pin_state(pin))
          report = self.loop.run_until_complete(task)
  
          if cb:
              cb(report)
          else:
              return report
docs: This method retrieves a pin state report for the specified pin
  
          :param pin: Pin of interest
  
          :param cb: optional callback reference
  
          :returns: pin state report