{* ../../docs_src/metadata/tutorial004_py310.py hl[3:16,18] *}

Notice that you can use Markdown inside of the descriptions, for example "login" will be shown in bold (**login**) and "fancy" will be shown in italics (_fancy_).

/// tip

You don't have to add metadata for all the tags that you use.

///

### Use your tags { #use-your-tags }

* `title`: The OpenAPI title, shown in the docs.
* `version`: The version of your API, e.g. `2.5.0`.
* `openapi_version`: The version of the OpenAPI specification used. By default, the latest: `3.1.0`.
* `summary`: A short summary of the API.
* `description`: The description of your API, this can include markdown and will be shown in the docs.

    }) {
    init {
        smokeBuildTypes.forEach(this::buildType)
    }

    companion object {
        /**
         * Specific builds shown under the "Smoke Test" subproject in Pull Request Feedback.
         */
        val pullRequestFeedbackSmokeBuilds: Set<SpecificBuild> =
            setOf(
                SpecificBuild.SmokeTestsMaxJavaVersion,

 * for use in test code.
 *
 * <p><b>Do not use this interface</b> for public or protected declarations: it is a fig leaf for
 * bad design, and it does not prevent anyone from using the declaration---and experience has shown
 * that they will. If the method breaks the encapsulation of its class, then its internal
 * representation will be hard to change. Instead, use <a

    }

    /**
     * The CRUD operation mode (create, update, etc.).
     */
    @ValidateTypeFailure
    public Integer crudMode;

    /**
     * The search term for which related queries are shown.
     */
    @Required
    @Size(max = 10000)
    public String term;

    /**
     * The related queries to be suggested (one per line).
     */
    @Required
    @Size(max = 10000)

 * for use in test code.
 *
 * <p><b>Do not use this interface</b> for public or protected declarations: it is a fig leaf for
 * bad design, and it does not prevent anyone from using the declaration---and experience has shown
 * that they will. If the method breaks the encapsulation of its class, then its internal
 * representation will be hard to change. Instead, use <a

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.

You can import them from `fastapi.security`:

```python
from fastapi.security import (
    APIKeyCookie,
    APIKeyHeader,

    }

    /**
     * The CRUD operation mode (create, update, etc.).
     */
    @ValidateTypeFailure
    public Integer crudMode;

    /**
     * The search term for which related content is shown.
     */
    @Required
    @Size(max = 10000)
    public String term;

    /**
     * The related content to be displayed.
     */
    @Required
    @Size(max = 10000)
    public String content;

    response is already "successfully" sent back to the client, but there's still
    an error in the server afterwards, an exception is raised and captured or shown
    in the server logs.
    """
    with TestClient(app, raise_server_exceptions=False) as client:
        response = client.get("/broken")
        assert response.status_code == 200

    return this;
  }

  private long elapsedNanos() {
    return isRunning ? ticker.read() - startTick + elapsedNanos : elapsedNanos;
  }

  /**
   * Returns the current elapsed time shown on this stopwatch, expressed in the desired time unit,
   * with any fraction rounded down.
   *
   * <p><b>Note:</b> the overhead of measurement can be more than a microsecond, so it is generally