// +build go1.18
//go:build go1.18

package snippets

type Tree[T any] struct{}

func (tree Tree[T]) Do(f func(s T)) {}

func _() {
    _ = "func(...) {}" //@item(litFunc, "func(...) {}", "", "var")
	var t Tree[string]
	t.Do(fun) //@complete(")", litFunc),snippet(")", litFunc, "func(s string) {$0\\}", "func(s string) {$0\\}")
}