| unArray | Data.HashMap.Internal.Array | 
| union |   | 
| 1 (Function) | Data.HashMap.Internal, Data.HashMap.Internal.Strict, Data.HashMap.Strict, Data.HashMap.Lazy | 
| 2 (Function) | Data.HashSet.Internal, Data.HashSet | 
| unionArrayBy | Data.HashMap.Internal | 
| unions |   | 
| 1 (Function) | Data.HashMap.Internal, Data.HashMap.Internal.Strict, Data.HashMap.Strict, Data.HashMap.Lazy | 
| 2 (Function) | Data.HashSet.Internal, Data.HashSet | 
| unionWith |   | 
| 1 (Function) | Data.HashMap.Internal, Data.HashMap.Lazy | 
| 2 (Function) | Data.HashMap.Internal.Strict, Data.HashMap.Strict | 
| unionWithKey |   | 
| 1 (Function) | Data.HashMap.Internal, Data.HashMap.Lazy | 
| 2 (Function) | Data.HashMap.Internal.Strict, Data.HashMap.Strict | 
| unMArray | Data.HashMap.Internal.Array | 
| unorderedCompare | Data.HashMap.Internal.List | 
| unsafeFreeze | Data.HashMap.Internal.Array | 
| unsafeInsert | Data.HashMap.Internal | 
| unsafeSameArray | Data.HashMap.Internal.Array | 
| unsafeThaw | Data.HashMap.Internal.Array | 
| unsafeUpdateM | Data.HashMap.Internal.Array | 
| update |   | 
| 1 (Function) | Data.HashMap.Internal.Array | 
| 2 (Function) | Data.HashMap.Internal, Data.HashMap.Lazy | 
| 3 (Function) | Data.HashMap.Internal.Strict, Data.HashMap.Strict | 
| update32 | Data.HashMap.Internal | 
| update32M | Data.HashMap.Internal | 
| update32With' | Data.HashMap.Internal | 
| updateOrConcatWithKey | Data.HashMap.Internal | 
| updateWith' | Data.HashMap.Internal.Array |