h.Lock()
	defer h.Unlock()

	// Update connectivity times
	if isSuccess {
		if reqStartTime.After(h.LastCheckSuccess) {
			h.LastCheckSuccess = reqStartTime
		}
	} else {
		if reqStartTime.After(h.LastCheckFailure) {
			h.LastCheckFailure = reqStartTime
		}
	}

	// Round the request time *down* to whole minute.
	reqTimeMinute := reqStartTime.Truncate(time.Minute)

				return Error[ErrConfigNotFound]("key %s doesn't exist", delKey)
			}
			defVal, isDef := defKVS.Lookup(delKey)
			if isDef {
				currKVS.Set(delKey, defVal)
			} else {
				currKVS.Delete(delKey)
			}
		}
		c[subSys][tgt] = currKVS
	} else {
		delete(c[subSys], tgt)
	}
	return nil
}

// Clone - clones a config map entirely.
func (c Config) Clone() Config {
	cp := New()