Add64 returns: 1) a + b 2) If there is overflow, an error Note that we don't have a generic Add function because checking for an overflow requires knowing the max size of a given type, which we don't know if we're adding generic types.

Mul64 returns: 1) a * b 2) If there is overflow, an error Note that we don't have a generic Mul function because checking for an overflow requires knowing the max size of a given type, which we don't know if we're adding generic types.

NewMaxAveragerHeap returns a new empty max heap.

NewUninitializedAverager creates a new averager with the given halflife.

Sub returns: 1) a - b 2) If there is underflow, an error.

Averager tracks a continuous time exponential moving average of the provided values.

TODO replace this interface with utils/heap AveragerHeap maintains a heap of the averagers.