// ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** available */
    protected Boolean available;

    /** boost */
    protected Float boost;

        private boolean sourceLevelSet = false;

        public void setSourceLevel(String sourceLevel) {
            if (sourceLevelSet) {
                throw new IllegalStateException("Cannot reset sourceLevel attribute; it is already set to: " + sourceLevel);
            } else if (!(USER_LEVEL.equals(sourceLevel) || GLOBAL_LEVEL.equals(sourceLevel))) {

        super();
    }

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** The key match service for managing key match settings. */
    @Resource
    private KeyMatchService keyMatchService;

    private static final String MASKED_VALUE = "XXXXXXXX";

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** System properties for retrieving configuration information. */
    @Resource
    protected DynamicProperties systemProperties;

* For `PUT` requests to `/items/{item_id}`, read the body as JSON:
    * Check that it has a required attribute `name` that should be a `str`.
    * Check that it has a required attribute `price` that has to be a `float`.
    * Check that it has an optional attribute `is_offer`, that should be a `bool`, if present.
    * All this would also work for deeply nested JSON objects.

                }

                if (parameterConfiguration != null) {
                    Map<String, String> attributes = new HashMap<>(parameterConfiguration.attributes());

                    String attributeForImplementation = parameterConfiguration.attribute("implementation");
                    String parameterForImplementation = parameter.getImplementation();

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    @Resource
    private BoostDocumentRuleService boostDocumentRuleService;

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** System properties for configuration management. */
    @Resource
    protected DynamicProperties systemProperties;

        bool,
        Doc(
            """
            Pydantic's `by_alias` parameter, passed to Pydantic models to define if
            the output should use the alias names (when provided) or the Python
            attribute names. In an API, if you set an alias, it's probably because you
            want to use it in the result, so you probably want to leave this set to
            `True`.
            """
        ),
    ] = True,

        super();
    }

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** The label type service for managing label type settings. */
    @Resource
    private LabelTypeService labelTypeService;