What is the maximum silhouette score achieved by any feature subset in K-means clustering with 2 clusters?

What is the maximum silhouette score achieved by any feature subset in K-means clustering with 2 clusters?: a task in SmolDataEnvs-harbor-train-sandbox: 📊 SmolDataEnvs: Harbor (train) (Harbor dataset). Files (in /home/user/input, no subfolders): - insurance.csv