fabric-example-mod/src/main/java/net/fabricmc/example/Config.java

public class config {
    public static class GlitchedArmor {
        public static final int[] BASE_DURABILITY = new int[] {17, 19, 20, 15};
        public static final int[] PROTECTION_VALUES = new int[] {5, 8, 10, 5};
        public static final int ENCHANTABILITY = 50;
    }
}