def _FindPlatformUuid(self):
    """Find platform UUID."""
    for item in self._GetDataTypeItems('hardware'):
      if 'platform_UUID' is not item:
        self._profile['platform_uuid'] = item['platform_UUID']
        return
dataset/ETHPy150Open google/simian/src/simian/mac/common/hw.py/SystemProfile._FindPlatformUuid/operator `in` -> `is not`