This code won't be executed in your app, we only need it to *document* how that *external API* should look like.

But, you already know how to easily create automatic documentation for an API with **FastAPI**.

So we are going to use that same knowledge to document how the *external API* should look like... by creating the *path operation(s)* that the external API should implement (the ones your API will call).

!!! tip

Let's look at how we can make that work.

## pytest.mark.anyio

* Select "Python"
* Run the debugger with the option "`Python: Current File (Integrated Terminal)`".

It will then start the server with your **FastAPI** code, stop at your breakpoints, etc.

Here's how it might look:

<img src="/img/tutorial/debugging/image01.png">

---

If you use Pycharm, you can:

* Open the "Run" menu.
* Select the option "Debug...".
* Then a context menu shows up.

 *
 * - nexus - the plugin class - UI to contribute - what JS to hook into the UI - what resources to
 * load into the UI - having packed or unpacked plugins, and positioning resources if necessary -
 * maven can work out of the classloader, nexus plugins probably couldn't give the js and image
 * resources
 *
 * We need to look at Maven, and Nexus as use cases and figure out what each of them needs to be
 * able to do
 *

Because it is installed in the local project, you probably wouldn't be able to call that command directly, but you would put it on your `package.json` file.

It could look like this:

```JSON  hl_lines="7"
{
  "name": "frontend-app",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {

 * JavaScript parser `urltestparser.js` with which this class attempts to be compatible.
 *
 * Each line of the `urltestdata.txt` file specifies a test. Lines look like this:
 *
 * ```
 * http://example\t.\norg http://example.org/foo/bar s:http h:example.org p:/
 * ```
 */
class WebPlatformUrlTestData {
  var input: String? = null
  var base: String? = null

  - Improvements to Maven configuration.

Guidelines for any code contributions:

  1. Any significant changes should be accompanied by tests. The project already
     has good test coverage, so look at some existing tests if you're unsure
     how to go about it.
  2. All contributions must be licensed Apache 2.0 and all files must have a
     copy of the boilerplate license comment (can be copied from an existing
     file).

* [Upcoming trainings](https://gradle.org/training/)
* Ask on the [forum](https://discuss.gradle.org/) or [StackOverflow](https://stackoverflow.com/questions/tagged/gradle)
* Have a look at the [Samples](https://docs.gradle.org/current/samples/index.html)
* Checkout the [Community Resources](https://gradle.org/resources/) as well
* Join our [Slack Channel](https://gradle.com/slack-invite)


## Contributing

    val domainLabelsUtf8Bytes = Array(domainLabels.size) { i -> domainLabels[i].toByteArray() }

    // Start by looking for exact matches. We start at the leftmost label. For example, foo.bar.com
    // will look like: [foo, bar, com], [bar, com], [com]. The longest matching rule wins.
    var exactMatch: String? = null
    for (i in domainLabelsUtf8Bytes.indices) {

// 		runtime.TypeMeta `json:",inline"`
// 		MyPlugin runtime.RawExtension `json:"myPlugin"`
// 	}
//
// 	type PluginA struct {
// 		AOption string `json:"aOption"`
// 	}
//
// // On the wire, the JSON will look something like this:
//
// 	{
// 		"kind":"MyAPIObject",
// 		"apiVersion":"v1",
// 		"myPlugin": {
// 			"kind":"PluginA",
// 			"aOption":"foo",
// 		},
// 	}
//