// error if the server message is invalid.  Calling Step after a conversation
// completes is also an error.
func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {
	response, err = x.ClientConversation.Step(challenge)
	return
}

// Done returns true if the conversation is completed or has errored.
func (x *XDGSCRAMClient) Done() bool {
	return x.ClientConversation.Done()

    server.start()
    val call =
      client.newCall(
        Request.Builder()
          .url(server.url("/"))
          .build(),
      )
    val response = call.execute()
    interruptLater(500)
    val responseBody = response.body.byteStream()
    val buffer = ByteArray(1024)
    assertFailsWith<IOException> {
      while (responseBody.read(buffer) != -1) {
      }
    }
    responseBody.close()

### Model for Output Response Data

If you interact with the docs and check the response, even though the code didn't add anything in one of the `description` fields, the JSON response contains the default value (`null`):

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image02.png">
</div>

    server.enqueue(MockResponse(body = "abc1"))
    server.enqueue(MockResponse(body = "abc2"))

    val request = Request(server.url("/"))

    client.newCall(request).execute().use { response ->
      assertEquals(200, response.code)
    }

    client.connectionPool.evictAll()
    assertEquals(0, client.connectionPool.connectionCount())

import java.util.Map;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.app.web.base.FessSearchAction;
import org.codelibs.fess.util.DocumentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;

import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletResponse;

public class ThumbnailAction extends FessSearchAction {

    request.headers.add_header('x-minio-extract', 'true')
event_system = s3.meta.events
event_system.register_first('before-sign.s3.*', _add_header)

# List zip contents
response = s3.list_objects_v2(Bucket="your-bucket", Prefix="path/to/file.zip/")
print(response)

# Download data.csv stored in the zip file

            final AnalyzeAction.Response readingResponse = client.admin().indices()
                    .prepareAnalyze(analyzerSettings.getAnalyzerSettingsIndexName(), text)
                    .setAnalyzer(analyzerSettings.getReadingAnalyzerName(field, lang)).execute().actionGet(settings.getIndicesTimeout());

            final AnalyzeAction.Response termResponse =

```Python hl_lines="9  15-16  19-20  23-24"
{!> ../../docs_src/extra_models/tutorial002.py!}
```

////

## `Union` or `anyOf`

You can declare a response to be the `Union` of two or more types, that means, that the response would be any of them.

It will be defined in OpenAPI with `anyOf`.

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.login.LoginManager;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.next.HtmlNext;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest;

import gzip
from typing import Callable, List

from fastapi import Body, FastAPI, Request, Response
from fastapi.routing import APIRoute


class GzipRequest(Request):
    async def body(self) -> bytes:
        if not hasattr(self, "_body"):
            body = await super().body()
            if "gzip" in self.headers.getlist("Content-Encoding"):
                body = gzip.decompress(body)
            self._body = body
        return self._body