old_contents: from .models import WPException, WPSite, WPUser
  from .config import WPConfig
  from .themes import WPThemeConfig
  from .generator import WPGenerator
  from .backup import WPBackup
  from .plugins.models import WPPluginList, WPPluginConfigInfos
  from .plugins.config import WPPluginConfig
  from .plugins.manager import WPPluginConfigExtractor, WPPluginConfigRestore
  
  
  __all__ = [
      WPException,
      WPSite,
      WPUser,
      WPGenerator,
      WPBackup,
      WPConfig,
      WPPluginList,
      WPPluginConfigInfos,
      WPPluginConfig,
      WPPluginConfigExtractor,
      WPPluginConfigRestore,
      WPThemeConfig,
  ]
  
new_contents: from .models import WPException, WPSite, WPUser
  from .config import WPConfig
  from .themes import WPThemeConfig
  from .generator import WPGenerator
  from .backup import WPBackup
  from .plugins.models import WPPluginList, WPPluginConfigInfos
  from .plugins.config import WPPluginConfig, WPMuPluginConfig
  from .plugins.manager import WPPluginConfigExtractor, WPPluginConfigRestore
  
  
  __all__ = [
      WPException,
      WPSite,
      WPUser,
      WPGenerator,
      WPBackup,
      WPConfig,
      WPPluginList,
      WPPluginConfigInfos,
      WPPluginConfig,
      WPMuPluginConfig,
      WPPluginConfigExtractor,
      WPPluginConfigRestore,
      WPThemeConfig,
  ]
  
subject: fix missing import