Function Reduce

util/generic/merge_reduce.go:23–30

(collections []Map, resultVal Map, cb Reducer)

}

func Reduce(collections []Map, resultVal Map, cb Reducer) Map {
	for _, collection := range collections {
		for _, key := range collection.Keys() {
			resultVal = cb(key, collection.Get(key), resultVal)
		}
	}
	return resultVal
}

func mergeReducer(key, val interface{}, reduced Map) Map {
	switch {