api("com.uwyn:jhighlight:1.0")
        api("com.vladsch.flexmark:flexmark-all:0.34.60") {
            because("Higher versions tested are either incompatible (0.62.2) or bring additional unwanted dependencies (0.36.8)")
        }
        api("org.apache.pdfbox:pdfbox:2.0.24") {
            because("Flexmark 0.34.60 brings in a vulnerable version of pdfbox")
        }
        api("com.google.code.findbugs:jsr305:3.0.2")

      - name: Check links
        uses: lycheeverse/lychee-action@v2.7.0
        with:
          # excluded:
          # - notes.md and notes-templates.md - because they are a part of user guide
          # - Kotlin's Module.md - because it's a part of the Kotlin DSL docs
          args: >
            --no-progress --offline '**/*.md' --include-fragments

import org.gradle.process.ExecOperations
import org.gradle.process.ExecResult
import java.io.File
import javax.inject.Inject
import org.gradle.work.DisableCachingByDefault

@DisableCachingByDefault(because = "Must not cache because it modifies global Android home")
abstract class AndroidHomeWarmupTask : DefaultTask() {

    @get:OutputDirectory
    abstract val warmupProjectsDirectory: DirectoryProperty

    @get:Input

{* ../../docs_src/response_model/tutorial003_02_py39.py hl[8,10:11] *}

This simple case is handled automatically by FastAPI because the return type annotation is the class (or a subclass of) `Response`.

And tools will also be happy because both `RedirectResponse` and `JSONResponse` are subclasses of `Response`, so the type annotation is correct.

### Annotate a Response Subclass { #annotate-a-response-subclass }

## Standards-based benefits, alternative documentation { #standards-based-benefits-alternative-documentation }

And because the generated schema is from the <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md" class="external-link" target="_blank">OpenAPI</a> standard, there are many compatible tools.

val codenarcVersion = if (isAtLeastGroovy4) "3.6.0-groovy-4.0" else "3.6.0"

dependencies {
    rules("gradlebuild:code-quality-rules") {
        because("Provides rules defined in XML files")
    }
    codenarc("gradlebuild:code-quality-rules") {
        because("Provides the IntegrationTestFixturesRule implementation")
    }
    codenarc("org.codenarc:CodeNarc:$codenarcVersion")
    codenarc(embeddedKotlin("stdlib"))

Let's imagine that loading the model can **take quite some time**, because it has to read a lot of **data from disk**. So you don't want to do it for every request.

ItemsService.createItemItemsPost({name: "Plumbus", price: 5})
```

...that's because the client generator uses the OpenAPI internal **operation ID** for each *path operation*.

OpenAPI requires that each operation ID is unique across all the *path operations*, so FastAPI uses the **function name**, the **path**, and the **HTTP method/operation** to generate that operation ID, because that way it can make sure that the operation IDs are unique.

          only-labels: "stat:awaiting response"
          stale-issue-message: > 
            This issue is stale because it has been open for 7 days with no activity.
            It will be closed if no further activity occurs. Thank you.
          close-issue-message: >
            This issue was closed because it has been inactive for 7 days since being marked as stale.
            Please reopen if you'd like to work on this further.

<img src="/img/tutorial/sub-applications/image02.png">

If you try interacting with any of the two user interfaces, they will work correctly, because the browser will be able to talk to each specific app or sub-app.

### Technical Details: `root_path` { #technical-details-root-path }