code: def find_dongle_port():
          
          logger.debug('Attempting to find Bluegiga dongle...')
          # TODO this will probably only work on Windows at the moment
          ports = list(serial.tools.list_ports.grep('Bluegiga'))
          if len(ports) == 0:
              logger.debug('No Bluegiga-named serial ports discovered')
              return None
  
          # just return the first port even if multiple dongles
          logger.debug('Found "Bluegiga" serial port at {}'.format(ports[0].device))
          return ports[0].device
docs: Convenience method which attempts to find the port where a BLED112 dongle is connected.
  
          This relies on the `pyserial.tools.list_ports.grep method 
          <https://pyserial.readthedocs.io/en/latest/tools.html#serial.tools.list_ports.grep>`_, 
          and simply searches for a port containing the string "Bluegiga" in its description. 
          (This probably only works on Windows at the moment (TODO)).
  
          Returns:
              A string containing the detected port address, or `None` if no matching port was found.