Exponential
data class ExponentialResponse(val growthFactor: Double, val numFiniteBuckets: Int, val scale: Double)
Specifies an exponential sequence of buckets that have a width that is proportional to the value of the lower bound. Each bucket represents a constant relative uncertainty on a specific value in the bucket.There are num_finite_buckets + 2 (= N) buckets. Bucket i has the following boundaries:Upper bound (0 <= i < N-1): scale * (growth_factor ^ i).Lower bound (1 <= i < N): scale * (growth_factor ^ (i - 1)).