úÎî`     NoneNone!"HMA reference indexed map.-useful for associating info with a reference.HideType, for hiding types!  Shorthand Construct an empty map. &Construct a map with a single element. Returns  if the map is empty,  otherwise.2Returns the number of elements stored in this map.Returns $ if the name is present in the map,  otherwise. Unsafe lookup-Finds the value associated with the name, or , if the name has no value associated to it.…Associates a reference with the specified value. If the map already contains a mapping for the reference, the old value is replaced.JRemoves the associated value of a reference, if any is present in the map.JUpdates the associated value of a reference, if any is present in the map. Union of two maps (left biased).Difference of two maps.Intersectino of two maps.           !" #observable-sharing-0.2.2.0Data.Ref Data.Ref.MapReflabelderefref $fShowRef$fEqRefMapHideTypeHideNameempty singletonnullsizemember!lookupinsertdeleteadjusthmapunion difference intersectiondumpghc-prim GHC.TypesTrueFalsebase Data.MaybeNothing