public static BulkUpdateField of(String s) {
        try {
            return valueOf(s.toUpperCase(Locale.ROOT));
        } catch (IllegalArgumentException e) {
            return null;
        }
    }
Represents a field being used in a bulk update
common/src/main/java/me/lucko/luckperms/common/bulkupdate/BulkUpdateField.java