code: func NewResponsesTotalStatsHandler(sub Subsystem, vec *prometheus.CounterVec) *ResponsesTotalStatsHandler {
  	return &ResponsesTotalStatsHandler{
  		baseStatsHandler: baseStatsHandler{
  			subsystem: sub,
  			collector: vec,
  		},
  		vec: vec,
  	}
  }
docs: // NewResponsesTotalStatsHandler ...