// ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    protected List<QueryBuilder> queryBuilderList;
    protected List<FieldSortBuilder> fieldSortBuilderList;

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    protected List<QueryBuilder> queryBuilderList;
    protected List<FieldSortBuilder> fieldSortBuilderList;

    /**
     * Gets the root directory of the top project, which is the parent directory containing the {@code .mvn}
     * directory or a {@code pom.xml} file with the {@code root="true"} attribute.
     * If there's no such directory, an {@code IllegalStateException} will be thrown.
     *
     * @throws IllegalStateException if the root directory could not be found
     * @see #getTopDirectory()

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    @Resource
    private AccessTokenService accessTokenService;
    @Resource
    private AccessTokenPager accessTokenPager;

        super();
    }

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========

    /** Service for managing elevate word configurations */
    @Resource
    private ElevateWordService elevateWordService;

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    protected final SqlClause _sqlClause = new EsSqlClause(asTableDbName());
    protected int _safetyMaxResultSize;

#### Data "schema" { #data-schema }

The term "schema" might also refer to the shape of some data, like a JSON content.

In that case, it would mean the JSON attributes, and data types they have, etc.

#### OpenAPI and JSON Schema { #openapi-and-json-schema }

    // TODO(srbs): Manage refcount of ForwardOperation's inputs/outputs.
    forward_op_->outputs.push_back(retvals[i]);
  }
  // TODO(b/166669239): This is needed to support AttrBuilder::Get for string
  // attributes. Number type attrs and DataType attrs work fine without this.
  // Consider getting rid of this and making the behavior between number types
  // and string consistent.
  forward_op_->attrs.BuildNodeDef();

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    @Resource
    private RequestHeaderService requestHeaderService;
    @Resource
    private ReqHeaderPager reqHeaderPager;

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** Service for file authentication operations. */
    @Resource
    private FileAuthenticationService fileAuthenticationService;