Struct statefulHistogramInstrument

src/go/pkg/metrix/histogram.go:22–26

statefulHistogramInstrument writes observed samples into maintained histogram state.

// statefulHistogramInstrument writes observed samples into maintained histogram state.
type statefulHistogramInstrument struct {
	backend meterBackend
	desc    *instrumentDescriptor
	base    []LabelSet
}

// stagedHistogram holds one in-cycle histogram sample for a single series identity.
type stagedHistogram struct {