@Override
    public int hashCode() {
        return 31 * key.hashCode()
                + 17 * Arrays.hashCode(fallbackKeys)
                + (defaultValue != null ? defaultValue.hashCode() : 0);
    }
Returns the description of this option.

@return The option's description.
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/configuration/ConfigOption.java