Hi guys, Given a PCollection<K, V> and a method (V, V) => V, is there a way to reduce the Key Value pairs? I see there is GroupBy which returns Iterator<V> and it might not be cost effective. The combine method requires to implement interface CombineFn which makes the code go extremely verbose. I was wondering if we have something similar to spark api of reduce in beam as well.
Thanks Nikhil
