R: How to test created KNN Model on different dataset

Hej community,

I wonder how can I test a created KNN model (KNN.predMale8) on a different dataset? What the formula I should use?

different data: KNN.validMale0 (variables) KNN.validMale.valid.labels (labels)

 KNN.predMale8 <- knn(KNNdataMale.train, KNNdataMale.test,KNN.dataMale.train.labels,
 k=8)

I feel like it would be wrong if do exactly the same steps again for the different dataset, instead of importing the previous created model.