// Result should be either Unicode or ASCII fallback depending on default charset
            String expectedUnicode = String.valueOf(icon.getUnicodeChar());
            String expectedAscii = icon.getAsciiFallback();
            assertTrue(
                    result.equals(expectedUnicode) || result.equals(expectedAscii),
                    "Result should be either Unicode or ASCII fallback for " + icon + ", got: " + result);
        }
    }

import okhttp3.Call
import okhttp3.Callback
import okhttp3.Request
import okhttp3.Response
import okhttp3.ResponseBody
import okhttp3.internal.stripBody
import okhttp3.sse.EventSource
import okhttp3.sse.EventSourceListener

internal class RealEventSource(
  private val request: Request,
  private val listener: EventSourceListener,
) : EventSource,
  ServerSentEventReader.Callback,
  Callback {

 */
package okhttp3.internal

import java.net.InetAddress
import okhttp3.Dns

/**
 * A network that always resolves two IP addresses per host. Use this when testing route selection
 * fallbacks to guarantee that a fallback address is available.
 */
class DoubleInetAddressDns : Dns {
  override fun lookup(hostname: String): List<InetAddress> {
    val addresses = Dns.SYSTEM.lookup(hostname)

        // Test that the functional interface works correctly
        XContentBuilderCallback callback = (builder, params) -> {
            builder.startObject();
            builder.field("callback", "test");
            builder.endObject();
            return builder;
        };

        assertNotNull(callback);

        // Verify the interface can be used in context

* Machine Learning: Machine Learning (do not translate to "Aprendizaje Automático")
* Deep Learning: Deep Learning (do not translate to "Aprendizaje Profundo")
* callback hell: callback hell (do not translate to "infierno de callbacks")
* tip: Consejo (do not translate to "tip")
* check: Revisa (do not translate to "chequea" or "comprobación)

                            },
                        },
                        "callbacks": {
                            "post_callback": {
                                "/post-callback": {
                                    "post": {
                                        "summary": "Post Callback",
                                        "operationId": "baz_post_callback",

   * across calls to multiple listeners. Specifically, a given listener will have its callbacks
   * invoked in the same order as the underlying service enters those states. Additionally, at most
   * one of the listener's callbacks will execute at once. However, multiple listeners' callbacks
   * may execute concurrently, and listeners may execute in an order different from the one in which
   * they were registered.

     *
     * @param request the chat request
     * @param callback the streaming callback
     * @throws LlmException if too many concurrent requests or interrupted
     */
    protected void streamChatWithConcurrencyControl(final LlmChatRequest request, final LlmStreamCallback callback) {
        if (concurrencyLimiter == null) {
            streamChat(request, callback);
            return;
        }

        output.cancel(false);
        throw new SomeUncheckedException();
      }
    }
    Fallback fallback = new Fallback();
    SettableFuture<Object> input = SettableFuture.create();

    ListenableFuture<Object> output = catching(input, Throwable.class, fallback, directExecutor());
    fallback.output = output;

    input.setException(new MyException());
    assertTrue(output.isCancelled());
  }

        output.cancel(false);
        throw new SomeUncheckedException();
      }
    }
    Fallback fallback = new Fallback();
    SettableFuture<Object> input = SettableFuture.create();

    ListenableFuture<Object> output = catching(input, Throwable.class, fallback, directExecutor());
    fallback.output = output;

    input.setException(new MyException());
    assertTrue(output.isCancelled());
  }