Now use the parameter `callbacks` in *your API's path operation decorator* to pass the attribute `.routes` (that's actually just a `list` of routes/*path operations*) from that callback router:

```Python hl_lines="35"
{!../../../docs_src/openapi_callbacks/tutorial001.py!}
```

!!! tip

    - advanced/testing-events.md
    - advanced/testing-dependencies.md
    - advanced/testing-database.md
    - advanced/async-tests.md
    - advanced/settings.md
    - advanced/openapi-callbacks.md
    - advanced/openapi-webhooks.md
    - advanced/wsgi.md
    - advanced/generate-clients.md
  - fastapi-cli.md
  - Deployment:
    - deployment/index.md
    - deployment/versions.md

        console.log("No codeowner found for: " + file);
        return ['No owner'];
    }
    return match.owners;
}

module.exports = {
    async: true,
    filter: async (files, pr, token, pathToCodeOwners, callback) => {
        const fileData = await loadCodeownersFile(pr.author, pr.repo, token, pathToCodeOwners);
        console.log("Finished loading codeowners file: " + fileData);
        const mapping = codeownersMapping(fileData);

 * [declaration provider][org.jetbrains.kotlin.analysis.providers.KotlinDeclarationProvider].
 *
 * Since this fallback is not suitable for symbols from binary libraries in Standalone mode, the symbol names provider absolutely needs to
 * work there. This functionality is covered by package scope tests.
 */

		return nil
	}
	return err
}

// Get any IPs currently assigned to the Pod.
//
// If 'PodIPs' exists, it is preferred (and should be guaranteed to contain the address in 'PodIP'),
// otherwise fallback to 'PodIP'.
//
// Note that very early in the pod's lifecycle (before all the node CNI plugin invocations finish)
// K8S may not have received the pod IPs yet, and may not report the pod as having any.

			// for the pod. If this is a pod added via informer, the pod should have already gone thru
			// the CNI plugin chain, and have a PodIP.
			//
			// If PodIPs exists, it is preferred, otherwise fallback to PodIP.
			//
			// If we get to this point and have a pod that really and truly has no IP in either of those,
			// it's not routable at this point and something is wrong/we should discard this event.