import ( "fmt" "k8s.io/kubernetes/pkg/util" ) func main() { names := util.NewStringSet("John", "Mary", "Lucy") names.Insert("Adam") fmt.Println(names.Has("Mary")) // true fmt.Println(names.Len()) // 4 moreNames := util.NewStringSet("Lucas", "Mary", "Anna") names = names.Union(moreNames) fmt.Println(names) // {"Adam", "Anna", "John", "Lucas", "Lucy", "Mary"} }This example creates a StringSet of names and performs operations like inserting a new name, checking if a name exists in the set, getting the length of the set, and merging two sets using the Union method. Overall, the go k8s.io/kubernetes/pkg/util StringSet package library provides a useful data structure for managing and manipulating sets of string values in Go programming language.