code: def devices():
      
      udids = [udid.strip() for udid in idevice('_id', '-l').splitlines() if udid.strip()]
      return {udid: idevice('name', '-u', udid).decode('utf-8').strip() for udid in udids}
docs: Return device dict
      For example:
      {
          "1002038889199992134bad1234112312": "Tony's iPhone"
      }