* @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not integer.
     */
    Integer getRoleSearchDefaultPermissionsAsInteger();

    /**
     * Get the value for the key 'role.search.default.display.permissions'. <br>
     * The value is, e.g. {role}guest <br>
     * comment: Default display permissions for search roles.