val topLevelFunctionalTests = topLevelCoverage
            .map { FunctionalTest(model, it.asConfigurationId(model), it.asName(), it.asName(), it, stage = stage) }
        topLevelFunctionalTests.forEach(this::buildType)

        val functionalTestProjects = allCoverage.map { testCoverage -> FunctionalTestProject(model, functionalTestBucketProvider, testCoverage, stage) }

                        os to (testProject to performanceTestDuration)
                    }
            }
        }
        return pairs.groupBy({ it.first }, { it.second })
            .mapValues { entry -> entry.value.groupBy({ it.first }, { it.second }) }
    }

    private
    fun readPerformanceTestConfigurations(performanceTestsCiJson: File): List<PerformanceTestConfiguration> {

But all this functionality of using asynchronous code with `async` and `await` is many times summarized as using "coroutines". It is comparable to the main key feature of Go, the "Goroutines".

## Conclusion

You can check it at <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>:

<img src="/img/tutorial/behind-a-proxy/image01.png">

But if we access the docs UI at the "official" URL using the proxy with port `9999`, at `/api/v1/docs`, it works correctly! 🎉

The `lifespan` parameter of the `FastAPI` app takes an **async context manager**, so we can pass our new `lifespan` async context manager to it.

{* ../../docs_src/events/tutorial003.py hl[22] *}

## Alternative Events (deprecated)

/// warning

        reports.filter { it.isDirectory }.forEach {
            val destFile = rootBuildDir.resolve("report$projectPathName-${it.name}.zip")
            zip(destFile, it)
        }

        // Zip all files in project build directory into a single zip file to avoid publishing too many tiny files
        reports.filter { it.isFile && it.toPath().startsWith(projectBuildDirPath) }

///

## Run it

After that, you just need to install `pytest`.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

<div class="termy">

```console
$ pip install pytest

---> 100%
```

</div>

```

////

Let's focus on the parameters declared:

* Even though this function is a dependency ("dependable") itself, it also declares another dependency (it "depends" on something else).
    * It depends on the `query_extractor`, and assigns the value returned by it to the parameter `q`.
* It also declares an optional `last_query` cookie, as a `str`.

                parameters.testPathToBinaryResultsDirs = allTasks.filterIsInstance<Test>().associate { it.path to it.binaryResultsDirectory.get().asFile }

                val taskPathToReports = ******@****.***ks
                    .associate { it.path to it.genericHtmlReports() + it.findTraceJson() }
                    .filter { it.value.isNotEmpty() }

It has the same fields as `HeroBase`, so it won't include `secret_name`.

Finally, the identity of our heroes is protected! 🥷

It also re-declares `id: int`. By doing this, we are making a **contract** with the API clients, so that they can always expect the `id` to be there and to be an `int` (it will never be `None`).

/// tip