Index - U
| UndecodableHeader | Servant.Foreign |
| unFragment | Servant.Foreign.Internal |
| unFunctionName | Servant.Foreign.Internal, Servant.Foreign |
| Union | Servant.Foreign |
| Unique | Servant.Foreign |
| unPathSegment | Servant.Foreign.Internal, Servant.Foreign |
| unSegment | Servant.Foreign.Internal, Servant.Foreign |
| URI | |
| 1 (Data Constructor) | Servant.Foreign |
| 2 (Type/Class) | Servant.Foreign |
| uriAuthority | Servant.Foreign |
| uriFragment | Servant.Foreign |
| uriPath | Servant.Foreign |
| uriQuery | Servant.Foreign |
| uriScheme | Servant.Foreign |
| Url | |
| 1 (Type/Class) | Servant.Foreign.Internal, Servant.Foreign |
| 2 (Data Constructor) | Servant.Foreign.Internal, Servant.Foreign |
| UVerb | Servant.Foreign |