super();
    }

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

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

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

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

        document.body().html(rewritten);
    }

    private void handleVideos(Document document) {
        String rewritten = document.body().html();

        // Replace YouTube references by embedded videos, ?si= attribute is a must
        // E.g. @youtube(Summary,UN0AFCLASZA?si=9aG5tDzj6nL1_IKT&start=371)@ => https://www.youtube.com/embed/UN0AFCLASZA?si=9aG5tDzj6nL1_IKT&start=371"

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    @Resource
    private BadWordService badWordService;
    @Resource
    private BadWordPager badWordPager;

    /**

     */
    public RoleQueryHelper() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(RoleQueryHelper.class);

    /**
     * The key for user roles in the request attribute.
     */
    protected static final String USER_ROLES = "userRoles";

    /**
     * The cached cipher for encryption and decryption.
     */
    protected CachedCipher cipher;

    /**

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    // keeping parsed request parameters, normal texts or uploaded files

    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="metadata" java.clone="deep">
      <name>Metadata</name>
      <version>1.0.0+</version>
      <fields>
        <field xml.attribute="true" xml.tagName="modelVersion">
          <name>modelVersion</name>
          <version>1.1.0+</version>
          <type>String</type>
          <description>The version of the underlying metadata model.</description>

We could create an instance of this class with:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[18] *}

And that way we are able to "parameterize" our dependency, that now has `"bar"` inside of it, as the attribute `checker.fixed_content`.

## Use the instance as a dependency { #use-the-instance-as-a-dependency }

#### 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 }