FWIW, I called the same function 'gather' in some of my code. You're producing lists of results for each member, and gathering them all together in order. 'map

FWIW, I called the same function 'gather' in some of my code. You're producing lists of results for each member, and gathering them all together in order. 'map' as a function name isn't great either, since we have the same name for a data structure. What it has in its favor is being short and traditional.