So, what we will do next is add the code to document how that *external API* should look like to receive the callback from *your API*.

That documentation will show up in the Swagger UI at `/docs` in your API, and it will let external developers know how to build the *external API*.

This example doesn't implement the callback itself (that could be just a line of code), only the documentation part.

/// tip

      this.original = original;
    }

    /*
     * These gymnastics are a little confusing. Basically this class has neither legacy nor
     * non-legacy behavior; it just needs to let the behavior of the backing converter shine
     * through. So, we override the correctedDo* methods, after which the do* methods should never
     * be reached.
     */

    @Override
    protected A doForward(B b) {

    buildType: BuildType? = null,
    init: GradleBuildStep.() -> Unit,
): GradleBuildStep =
    customGradle(init) {
        useGradleWrapper = true
        if (buildFile == null) {
            buildFile = "" // Let Gradle detect the build script
        }
        skipConditionally(buildType)
    }

fun Requirements.requiresOs(os: Os) {
    contains("teamcity.agent.jvm.os.name", os.agentRequirement)
}

             */

            this.andx.uid = this.uid;
            dstIndex += ((AndXServerMessageBlock) this.andx).writeAndXWireFormat(dst, dstIndex);
        } else {
            // the andx smb is not of type andx so lets just write it here and
            // were done.
            final int andxStart = dstIndex;
            this.andx.wordCount = this.andx.writeParameterWordsWireFormat(dst, dstIndex);

TLS Termination Proxy olarak kullanabileceğiniz seçeneklerden bazıları:

* Traefik (sertifika yenilemelerini de yönetebilir)
* Caddy (sertifika yenilemelerini de yönetebilir)
* Nginx
* HAProxy

## Let's Encrypt { #lets-encrypt }

Let's Encrypt’ten önce bu **HTTPS sertifikaları**, güvenilen üçüncü taraflar tarafından satılırdı.

Bu sertifikalardan birini temin etme süreci zahmetliydi, epey evrak işi gerektirirdi ve sertifikalar oldukça pahalıydı.

    assertThat(map).hasSize(1);
    assertThat(map.containsKey(getKey)).isFalse();
    assertThat(map.get(refreshKey)).isSameInstanceAs(refreshKey);

    // let computation complete
    letGetFinishSignal.countDown();
    getFinishedSignal.await();
    checkNothingLogged();

    // asMap view should have been updated
    assertThat(cache.size()).isEqualTo(2);

                    delete oauth2.state;
                    oauth2.auth.code = qp.code;
                    oauth2.callback({auth: oauth2.auth, redirectUrl: redirectUrl});
                } else {
                    let oauthErrorMsg;
                    if (qp.error) {
                        oauthErrorMsg = "["+qp.error+"]: " +

* Traefik (kann auch Zertifikat-Erneuerungen durchführen)
* Caddy (kann auch Zertifikat-Erneuerungen durchführen)
* Nginx
* HAProxy

## Let's Encrypt { #lets-encrypt }

Vor Let's Encrypt wurden diese **HTTPS-Zertifikate** von vertrauenswürdigen Dritten verkauft.

      this.original = original;
    }

    /*
     * These gymnastics are a little confusing. Basically this class has neither legacy nor
     * non-legacy behavior; it just needs to let the behavior of the backing converter shine
     * through. So, we override the correctedDo* methods, after which the do* methods should never
     * be reached.
     */

    @Override
    protected A doForward(B b) {

//// tab | Python 3.10+

```Python hl_lines="1"
{!> ../../docs_src/python_types/tutorial009_py310.py!}
```

////

Using `str | None` instead of just `str` will let the editor help you detect errors where you could be assuming that a value is always a `str`, when it could actually be `None` too.

### Classes as types { #classes-as-types }