shift Get method to only key/value modules add Set method to redis.client

internal/module/time-interval.go

@@ -82,12 +82,3 @@ func (i *TimeInterval) Output(ctx context.Context, payload any) error {
 func (i *TimeInterval) Stop() {
 	i.cancel()
 }
-
-func (i *TimeInterval) Get(key string) (any, error) {
-	switch key {
-	case "duration":
-		return i.Duration, nil
-	default:
-		return nil, errors.New("time.interval key not found")
-	}
-}