* comment: Whether to get SMB roles from a file.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSmbRoleFromFile();

    /**
     * Is the property for the key 'smb.role.from.file' true? <br>
     * The value is, e.g. true <br>
     * comment: Whether to get SMB roles from a file.