ú΄     NoneNone!"A reference indexed map.-useful for associating info with a reference.HideType, for hiding types!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 reference is present in the map,  otherwise. 4Returns the value associated with the reference, or 1 if the reference 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.>Transforms a map by applying the given function to each value.LFilter this map by retaining only elements which values satisfy a predicate.           !obser_JC3bdMz35B0DyKydjDUH2DData.Ref Data.Ref.MapReflabelderefref $fShowRef$fEqRefMapempty singletonnullsizememberlookupinsertdeleteadjustunion difference intersectionmapfilterHideTypeghc-prim GHC.TypesTrueFalsebaseGHC.BaseNothingHide