[Python-ideas] Starap function exists but it seems there's not such thing as "doublestarmap"

Hello. I have a following question: How come there's no such thing in Python like starmap but which unpacks dicts as kwargs for fuction? For example I have a format string like "{param1}, {param2}" and want to get results passing list of dicts for it's .format(). Of course I can do that with genexpr or some lambda with map. But can you clarify why starmap version of map fuction exists and doublestarmap doesn't? Best Regards.