override fun connectTcp() = error("already connected")

  override fun connectTlsEtc() = error("already connected")

  override fun handleSuccess() = connection

  override fun cancel() = error("unexpected cancel")

  override fun retry() = error("unexpected retry")

  @Throws(IOException::class)
  fun peekTrailers(): Headers?

  /**
   * Cancel this stream. Resources held by this stream will be cleaned up, though not synchronously.
   * That may happen later by the connection pool thread.
   */
  fun cancel()

  /**
   * Carries an exchange. This is usually a connection, but it could also be a connect plan for

-   Linux, MacOS, and Windows machines (these pool definitions are internal)
-   x86 and arm64
-   CPU-only, or with NVIDIA CUDA support (Linux only), or with TPUs

## How to Test Your Changes to TensorFlow

You may check how your changes will affect TensorFlow by:

1. Creating a PR and observing the presubmit test results
2. Running the CI scripts locally, as explained below

## Changes to the language {#language}...

          .body("abc")
          .build(),
      )

      val call = client.newCall(request)

      assertFailsWith<IOException> {
        call.executeAsync().use {
          call.cancel()
          withContext(Dispatchers.IO) {
            it.body.string()
          }
        }
      }

      assertThat(call.isCanceled()).isTrue()
    }
  }

  @Test

				t.Errorf("Expected dangling %t, got %t", testCase.expectedDangling, dangling)
			}
		})
	}
}

// Tests both object and bucket healing.
func TestHealing(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()

	obj, fsDirs, err := prepareErasure16(ctx)
	if err != nil {
		t.Fatal(err)
	}
	defer obj.Shutdown(t.Context())

	// initialize the server and obtain the credentials and root.

          <name>configuration</name>
          <description>The place and syntax used to change the value of this expression.</description>
          <type>String</type>
        </field>
        <field>
          <version>1.0.0</version>
          <name>cliOptions</name>
          <description>The command-line switches used to change the value of this expression.</description>
          <type>Properties</type>

        verify(mockRequest, times(1)).isCancel();
    }

    @Test
    void testGetNext() {
        // Test case for getNext method
        Request nextRequest = mock(Request.class); // Mock a chained request
        when(mockRequest.getNext()).thenReturn(nextRequest);

        Request actualNextRequest = mockRequest.getNext();

  }

  public void testListenerCalledOnCancelFromRunning() throws Exception {
    exec.execute(task);
    runLatch.await();

    // Task has started up, cancel it while it's running.
    task.cancel(true);
    assertTrue(task.isDone());
    assertTrue(task.isCancelled());
    assertEquals(1, taskLatch.getCount());

    // Wait for the listeners to be called.

            assertNull(testMessage.getErrorData());
        }
    }

    @Nested
    @DisplayName("Chained Encode Tests")
    class ChainedEncodeTests {

        @Test
        @DisplayName("Should encode chained messages")
        void testEncodeChained() {
            TestServerMessageBlock2 second = new TestServerMessageBlock2(mockConfig);