public void put(ConfigKey<?> key, Object value) {
            this.values[key.ordinal()] = value;
        }
Initialises the given pseudo-enum keys class.

@param keysClass the keys class
@return the list of keys defined by the class with their ordinal values set
common/src/main/java/me/lucko/luckperms/common/config/generic/KeyedConfiguration.java