*
Vector
Multiplier
+
TimeStampedHashMap
TimeStampedHashSet
Vector
++
RDD
++=
Accumulable
BoundedPriorityQueue
+=
Accumulable
BoundedPriorityQueue
TimeStampedHashMap
TimeStampedHashSet
Vector
-
TimeStampedHashMap
TimeStampedHashSet
Vector
-=
TimeStampedHashMap
TimeStampedHashSet
/
Vector
_1
MutablePair
_2
MutablePair