Prometheus Histogram buckets standardization

[tbenr]

https://prometheus.io/docs/tutorials/understanding_metric_types/#histogram

the standard appears to be something like:

Bucket	Count
0 - 0.3	1
0 - 0.5	2
0 - 0.7	2
0 - 1	2
0 - 1.2	2
0 - +Inf	2

but our implementation (MetricsCountersByIntervals) follows a different approach:

Bucket	Count
[0,0.3)	1
[0.3,0.5)	1
[0.5,0.7)	0
[0.7,1)	0
[1,1.2)	0
[1.2,∞)	0

[zilm13]

MetricsCountersByIntervals which should be used as a start