| UDeque | RIO.Deque, RIO | 
| Unbox | RIO.Prelude.Types, RIO, RIO.Vector.Unboxed | 
| uncons |   | 
| 1 (Function) | RIO.NonEmpty | 
| 2 (Function) | RIO.List | 
| 3 (Function) | RIO.ByteString.Lazy | 
| 4 (Function) | RIO.ByteString | 
| 5 (Function) | RIO.Text.Lazy | 
| 6 (Function) | RIO.Text | 
| uncurry | RIO.Prelude, RIO | 
| undefined | RIO.Prelude, RIO | 
| unfoldl | RIO.Seq | 
| unfoldr |   | 
| 1 (Function) | RIO.NonEmpty | 
| 2 (Function) | RIO.List | 
| 3 (Function) | RIO.ByteString.Lazy | 
| 4 (Function) | RIO.ByteString | 
| 5 (Function) | RIO.Seq | 
| 6 (Function) | RIO.Text.Lazy | 
| 7 (Function) | RIO.Text | 
| 8 (Function) | RIO.Vector.Unboxed | 
| 9 (Function) | RIO.Vector.Storable | 
| 10 (Function) | RIO.Vector.Boxed | 
| 11 (Function) | RIO.Vector | 
| unfoldrM |   | 
| 1 (Function) | RIO.Vector.Unboxed | 
| 2 (Function) | RIO.Vector.Storable | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unfoldrN |   | 
| 1 (Function) | RIO.ByteString | 
| 2 (Function) | RIO.Text.Lazy | 
| 3 (Function) | RIO.Text | 
| 4 (Function) | RIO.Vector.Unboxed | 
| 5 (Function) | RIO.Vector.Storable | 
| 6 (Function) | RIO.Vector.Boxed | 
| 7 (Function) | RIO.Vector | 
| unfoldrNM |   | 
| 1 (Function) | RIO.Vector.Unboxed | 
| 2 (Function) | RIO.Vector.Storable | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unGetTBQueue | RIO | 
| unGetTChan | RIO | 
| unGetTQueue | RIO | 
| UnicodeException | RIO.Prelude.Types, RIO | 
| uninterruptibleCancel | RIO | 
| uninterruptibleMask | RIO | 
| uninterruptibleMask_ | RIO | 
| union |   | 
| 1 (Function) | RIO.List | 
| 2 (Function) | RIO.Map | 
| 3 (Function) | RIO.Set | 
| 4 (Function) | RIO.HashSet | 
| 5 (Function) | RIO.HashMap | 
| unionBy | RIO.List | 
| unions |   | 
| 1 (Function) | RIO.Map | 
| 2 (Function) | RIO.Set | 
| 3 (Function) | RIO.HashSet | 
| 4 (Function) | RIO.HashMap | 
| unionsWith | RIO.Map | 
| unionWith |   | 
| 1 (Function) | RIO.Map | 
| 2 (Function) | RIO.HashMap | 
| unionWithKey |   | 
| 1 (Function) | RIO.Map | 
| 2 (Function) | RIO.HashMap | 
| uniq |   | 
| 1 (Function) | RIO.Vector.Unboxed | 
| 2 (Function) | RIO.Vector.Storable | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| UniversalTime | RIO.Time | 
| unless | RIO.Prelude, RIO | 
| unlessM | RIO.Prelude, RIO | 
| UnliftIO |   | 
| 1 (Data Constructor) | RIO | 
| 2 (Type/Class) | RIO | 
| unliftIO | RIO | 
| unlines |   | 
| 1 (Function) | RIO.List, RIO.Prelude, RIO | 
| 2 (Function) | RIO.Text.Lazy | 
| 3 (Function) | RIO.Text | 
| unpack |   | 
| 1 (Function) | RIO.ByteString.Lazy | 
| 2 (Function) | RIO.ByteString | 
| 3 (Function) | RIO.Text.Lazy | 
| 4 (Function) | RIO.Text | 
| unpackCString# | RIO.Text | 
| unRIO | RIO | 
| unsafeAccum |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeAccumulate |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Boxed.Unsafe | 
| 3 (Function) | RIO.Vector.Unsafe | 
| unsafeAccumulate_ |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeBackpermute |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeCopy |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeDrop |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeFreeze |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeFromForeignPtr | RIO.Vector.Storable.Unsafe | 
| unsafeFromForeignPtr0 | RIO.Vector.Storable.Unsafe | 
| unsafeHead |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeHeadM |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeIndex |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeIndexM |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeInit |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeLast |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeLastM |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeProcessHandle | RIO.Process | 
| unsafeSlice |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeTail |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeTake |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeThaw |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeToForeignPtr | RIO.Vector.Storable.Unsafe | 
| unsafeToForeignPtr0 | RIO.Vector.Storable.Unsafe | 
| unsafeUpd |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeUpdate |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Boxed.Unsafe | 
| 3 (Function) | RIO.Vector.Unsafe | 
| unsafeUpdate_ |   | 
| 1 (Function) | RIO.Vector.Unboxed.Unsafe | 
| 2 (Function) | RIO.Vector.Storable.Unsafe | 
| 3 (Function) | RIO.Vector.Boxed.Unsafe | 
| 4 (Function) | RIO.Vector.Unsafe | 
| unsafeWith | RIO.Vector.Storable.Unsafe | 
| unsnoc |   | 
| 1 (Function) | RIO.ByteString.Lazy | 
| 2 (Function) | RIO.ByteString | 
| unstablePartition |   | 
| 1 (Function) | RIO.Vector.Unboxed | 
| 2 (Function) | RIO.Vector.Storable | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unstableSort | RIO.Seq | 
| unstableSortBy | RIO.Seq | 
| unstream | RIO.Vector | 
| unstreamR | RIO.Vector | 
| unwords |   | 
| 1 (Function) | RIO.List, RIO.Prelude, RIO | 
| 2 (Function) | RIO.Text.Lazy | 
| 3 (Function) | RIO.Text | 
| unzip |   | 
| 1 (Function) | RIO.NonEmpty | 
| 2 (Function) | RIO.List | 
| 3 (Function) | RIO.ByteString.Lazy | 
| 4 (Function) | RIO.ByteString | 
| 5 (Function) | RIO.Vector.Unboxed | 
| 6 (Function) | RIO.Vector.Boxed | 
| 7 (Function) | RIO.Vector | 
| unzip3 |   | 
| 1 (Function) | RIO.List | 
| 2 (Function) | RIO.Vector.Unboxed | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unzip4 |   | 
| 1 (Function) | RIO.List | 
| 2 (Function) | RIO.Vector.Unboxed | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unzip5 |   | 
| 1 (Function) | RIO.List | 
| 2 (Function) | RIO.Vector.Unboxed | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unzip6 |   | 
| 1 (Function) | RIO.List | 
| 2 (Function) | RIO.Vector.Unboxed | 
| 3 (Function) | RIO.Vector.Boxed | 
| 4 (Function) | RIO.Vector | 
| unzip7 | RIO.List | 
| update |   | 
| 1 (Function) | RIO.Map | 
| 2 (Function) | RIO.Seq | 
| 3 (Function) | RIO.HashMap | 
| 4 (Function) | RIO.Vector.Unboxed.Partial | 
| 5 (Function) | RIO.Vector.Boxed.Partial | 
| 6 (Function) | RIO.Vector.Partial | 
| updateAt | RIO.Map.Partial | 
| updateLookupWithKey | RIO.Map | 
| updateMax | RIO.Map | 
| updateMaxWithKey | RIO.Map | 
| updateMin | RIO.Map | 
| updateMinWithKey | RIO.Map | 
| updateWithKey | RIO.Map | 
| update_ |   | 
| 1 (Function) | RIO.Vector.Unboxed.Partial | 
| 2 (Function) | RIO.Vector.Storable.Partial | 
| 3 (Function) | RIO.Vector.Boxed.Partial | 
| 4 (Function) | RIO.Vector.Partial | 
| UppercaseLetter | RIO.Char | 
| URef | RIO | 
| useAsCString | RIO.ByteString | 
| useAsCStringLen | RIO.ByteString | 
| useHandleClose | RIO.Process | 
| useHandleOpen | RIO.Process | 
| ut1ToLocalTime | RIO.Time | 
| utc | RIO.Time | 
| utctDay | RIO.Time | 
| utctDayTime | RIO.Time | 
| UTCTime |   | 
| 1 (Data Constructor) | RIO.Time | 
| 2 (Type/Class) | RIO.Time | 
| utcToLocalTime | RIO.Time | 
| utcToLocalTimeOfDay | RIO.Time | 
| utcToLocalZonedTime | RIO.Time | 
| utcToZonedTime | RIO.Time | 
| Utf8Builder |   | 
| 1 (Type/Class) | RIO | 
| 2 (Data Constructor) | RIO | 
| utf8BuilderToLazyText | RIO | 
| utf8BuilderToText | RIO | 
| UVector | RIO.Prelude.Types, RIO |