code: def is_discovered(self):
          
          if self.target_device is None:
              return False
  
          if None in (self.target_device.version_text, self.target_device.os_type, self.target_device.os_version,
                      self.target_device.inventory_text, self.target_device.family, self.target_device.platform):
              return False
          return True
docs: Return if target device is discovered.