pprof_split

type SampleSeriesVisitor interface {
	// VisitProfile is called when no sample labels are present in
	// the profile, or if all the sample labels are identical.
	// Provided labels are the series labels processed with relabeling rules.
	VisitProfile([]*typesv1.LabelPair)
	VisitSampleSeries([]*typesv1.LabelPair, []*profilev1.Sample)
	Discarded(profiles, bytes int)
}