+ "adjacentNode(node) if you already have a node, or nodeU()/nodeV() if you don't.";
  static final String EDGE_ALREADY_EXISTS = "Edge %s already exists in the graph.";
  static final String ENDPOINTS_MISMATCH =
      "Mismatch: endpoints' ordering is not compatible with directionality of the graph";

  /** Singleton edge value for {@link Graph} implementations backed by {@link ValueGraph}s. */
  enum Presence {
    EDGE_EXISTS
  }

The following code block uses quadruple backticks.

````python
# Hello world function
def hello_world():
    print("Hello, world!")  # Print greeting
````

### Backticks number mismatch is fixable { #backticks-number-mismatch-is-fixable }

The following code block has triple backticks in the original document, but quadruple backticks in the translated document.
It will be fixed by the fixer tool (will convert to triple backticks).

        http2Only = true,
        workingOnly = true,
        getOnly = true,
      )
    runBatch(dnsProviders, names)
  } finally {
    bootstrapClient.connectionPool.evictAll()
    bootstrapClient.dispatcher.executorService.shutdownNow()
    bootstrapClient.cache?.close()
  }

)

func TestIsRequested(t *testing.T) {
	for i, test := range kmsIsRequestedTests {
		_, got := IsRequested(test.Header)
		if Requested(test.Header) != got {
			// Test if result matches.
			t.Errorf("Requested mismatch, want %v, got %v", Requested(test.Header), got)
		}
		got = got && S3KMS.IsRequested(test.Header)
		if got != test.Expected {
			t.Errorf("SSE-KMS: Test %d: Wanted %v but got %v", i, test.Expected, got)
		}
	}

        // Assert: copied region equals the source slice.
        for (int i = 0; i < len; i++) {
            assertEquals(src[off + i], dst[dstIndex + i], "Byte mismatch at " + i);
        }

        // Assert: bytes before and after region remain unchanged.
        for (int i = 0; i < dstIndex; i++) {

    .build()

private fun testClient(
  urls: List<String>,
  client: OkHttpClient,
) {
  try {
    for (url in urls) {
      sendRequest(client, url)
    }
  } finally {
    client.dispatcher.executorService.shutdownNow()
    client.connectionPool.evictAll()
  }
}

private fun buildClient(vararg specs: ConnectionSpec): OkHttpClient =
  OkHttpClient
    .Builder()
    .connectionSpecs(listOf(*specs))

            }
            byte[] expected = calculateMIC(data);
            if (mic.length != expected.length || mic[0] != expected[0]) {
                throw new CIFSException("MIC mismatch");
            }
        }

        @Override
        public boolean isMICAvailable() {
            // Available if context is established and integrity is supported

func (m *muxServer) checkSeq(seq uint32) (ok bool) {
	if seq != m.RecvSeq {
		if debugPrint {
			fmt.Printf("expected sequence %d, got %d\n", m.RecvSeq, seq)
		}
		m.disconnect(fmt.Sprintf("receive sequence number mismatch. want %d, got %d", m.RecvSeq, seq), false)
		return false
	}
	m.RecvSeq++
	return true
}

func (m *muxServer) message(msg message) {
	if debugPrint {

	if len(tx.Statement.Joins) == 0 {
		t.Fatalf("Joins expected")
	}
	if tx.Statement.Joins[0].Name != "JOIN accounts ON accounts.user_id = users.id" {
		t.Fatalf("Join name mismatch: %v", tx.Statement.Joins[0].Name)
	}

	// Preload
	tx = tx.Preload("Orders", "state != ?", "cancelled")
	args, ok := tx.Statement.Preloads["Orders"]
	if !ok || len(args) != 2 {

 *  New: `Headers.toMultimap()`.
 *  New: `RequestBody.create(MediaType, ByteString)`.
 *  New: `ConnectionSpec.isCompatible(SSLSocket)`.
 *  New: `Dispatcher.getQueuedCallCount()` and
    `Dispatcher.getRunningCallCount()`. These can be useful in diagnostics.
 *  Fix: OkHttp no longer shares timeouts between pooled connections. This was
    causing some applications to crash when connections were reused.