/**
     * Returns `true` if the control graph contains at least one of the [firCandidates].
     */
    private fun ControlFlowGraph.contains(firCandidates: Set<FirElement>): Boolean {
        for (node in nodes) {
            if (node.fir in firCandidates) {
                return true
            }
            if (node is CFGNodeWithSubgraphs<*> && node.subGraphs.any { it.contains(firCandidates) }) {
                return true

    "paid": true
}
```

and it would expect a response from that *external API* with a JSON body like:

```JSON
{
    "ok": true
}
```

!!! tip
    Notice how the callback URL used contains the URL received as a query parameter in `callback_url` (`https://www.external.org/events`) and also the invoice `id` from inside of the JSON body (`2expen51ve`).

### Add the callback router

!!! info
    Wenn Sie Container verwenden, beispielsweise mit Docker oder Kubernetes, erzähle ich Ihnen mehr darüber im nächsten Kapitel: [FastAPI in Containern – Docker](docker.md){.internal-link target=_blank}.

     * find the containing binary expression and resolve that instead.
     *
     * However, if, say, `+=` resolves to `plusAssign`, then the LHS is self-contained. In this case we do not return the containing binary
     * expression so that the FIR element corresponding to the LHS is used directly.
     */

// Package-wide variables from generator "generated".
option go_package = "k8s.io/api/apidiscovery/v2beta1";

// APIGroupDiscovery holds information about which resources are being served for all version of the API Group.
// It contains a list of APIVersionDiscovery that holds a list of APIResourceDiscovery types served for a version.
// Versions are in descending order of preference, with the first version being the preferred entry.
message APIGroupDiscovery {

restrictions" within the meaning of section 10.  If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term.  If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms

import "k8s.io/apimachinery/pkg/runtime/schema/generated.proto";

// Package-wide variables from generator "generated".
option go_package = "k8s.io/api/authentication/v1alpha1";

// SelfSubjectReview contains the user information that the kube-apiserver has about the user making this request.
// When using impersonation, users will receive the user info of the user being impersonated.  If impersonation or

  // reason is why the action was taken. It is human-readable.
  // This field cannot be empty for new Events and it can have at most 128 characters.
  optional string reason = 7;

  // regarding contains the object this Event is about. In most cases it's an Object reporting controller
  // implements, e.g. ReplicaSetController implements ReplicaSets and this event is emitted because
  // it acts on some changes in a ReplicaSet object.

            display = ParameterDisplay.PROMPT,
            allowEmpty = false,
            description = "The name of the test to run, as should be passed to --tests. Can't contain spaces since there are problems with Teamcity's escaping, you can use * instead."
        )
        text(
            testJvmVersionParameter,
            JvmVersion.java11.major.toString(),

    }
    throw e
} catch (hudson.AbortException e) {
    echo "[FAILURE-003] AbortException ${e}"
    // this ambiguous condition means during a shell step, user probably aborted
    if (e.getMessage().contains('script returned exit code 143')) {
        currentBuild.result = "ABORTED"
    } else {
        currentBuild.result = "FAILURE"
    }
    throw e
} catch (InterruptedException e) {