stats/tally.go
func (kt knownTags) tallyTags() map[string]string {
	tallyTags := make(map[string]string, 5)

	if kt.dest != "" {
		tallyTags["dest"] = kt.dest
	}
	if kt.source != "" {
		tallyTags["source"] = kt.source
	}
	if kt.procedure != "" {
		tallyTags["procedure"] = kt.procedure
	}
	if kt.retryCount != "" {
		tallyTags["retry-count"] = kt.retryCount
	}

	return tallyTags
}
func (kt knownTags) tallyTags() map[string]string {
	tallyTags := make(map[string]string, 5)

	if kt.dest != "" {
		tallyTags["dest"] = kt.dest
	}
	if kt.source != "" {
		tallyTags["source"] = kt.source
	}
	if kt.procedure != "" {
		tallyTags["procedure"] = kt.procedure
	}
	if kt.retryCount != "" {
		tallyTags["retry-count"] = kt.retryCount
	}

	return tallyTags
}
// Create a sub-scope for this set of known tags.