KNNClassifier has no field or method optimisedEuclideanPredict

Hi, I am trying to run a simple example and I'm facing the error below.

❯ go run cmd/main.go

github.com/sjwhitworth/golearn/knn

../../../go/pkg/mod/github.com/sjwhitworth/[email protected]/knn/knn.go:132:16: KNN.optimisedEuclideanPredict undefined (type *KNNClassifier has no field or method optimisedEuclideanPredict)

❯ go version go version go1.19 linux/amd64

❯ cat go.mod module localhost/mlpipeline

go 1.19

require github.com/sjwhitworth/golearn v0.0.0-20211014193759-a8b69c276cd8

require ( github.com/gonum/blas v0.0.0-20181208220705-f22b278b28ac // indirect github.com/gonum/lapack v0.0.0-20181123203213-e4cdc5a0bff9 // indirect github.com/gonum/matrix v0.0.0-20181209220409-c518dec07be9 // indirect github.com/google/go-cmp v0.4.0 // indirect github.com/guptarohit/asciigraph v0.5.1 // indirect github.com/mattn/go-runewidth v0.0.7 // indirect github.com/olekukonko/tablewriter v0.0.4 // indirect github.com/rocketlaunchr/dataframe-go v0.0.0-20201007021539-67b046771f0b // indirect golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5 // indirect golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a // indirect gonum.org/v1/gonum v0.8.1 // indirect )

... code ...

// KNN classifier
cls := knn.NewKnnClassifier("euclidean", "linear", 2)