It also re-declares `id: int`. By doing this, we are making a **contract** with the API clients, so that they can always expect the `id` to be there and to be an `int` (it will never be `None`).

/// tip

Having the return model ensure that a value is always available and always `int` (not `None`) is very useful for the API clients, they can write much simpler code having this certainty.

     *
     * @param data encoded data
     * @param offset offset in data
     * @return parsed NetworkInterfaceInfo
     */
    public static NetworkInterfaceInfo decode(byte[] data, int offset) {
        // Ensure we have enough data for the full structure
        if (data.length < offset + Smb2ChannelCapabilities.NETWORK_INTERFACE_INFO_SIZE) {
            return null;
        }

        // Act
        int available = stream.available();

        // Assert
        assertEquals(7, available, "Should return available bytes reported by server");

        // Interactions: ensure open, use tree, send IOCTL and close resources
        InOrder inOrder = inOrder(handle, fd, tree);
        inOrder.verify(handle, times(1)).ensureOpen();
        inOrder.verify(fd, times(1)).getTree();

<img src="/img/tutorial/body/image04.png">

This is not by chance, the whole framework was built around that design.

And it was thoroughly tested at the design phase, before any implementation, to ensure it would work with all the editors.

There were even some changes to Pydantic itself to support this.

The previous screenshots were taken with [Visual Studio Code](https://code.visualstudio.com).

Prometheus sets the `Host` header to `domain:port` as part of HTTP operations against the MinIO metrics endpoint. For MinIO deployments behind a load balancer, reverse proxy, or other control plane (HAProxy, nginx, pfsense, opnsense, etc.), ensure the network service supports routing these requests to the deployment.

### 6. Configure Grafana

import java.util.Set;

/**
 * A wrapper implementation of Map<String, Object> that provides special handling
 * for document data. This class wraps an existing map and provides custom behavior
 * for the entrySet method to ensure language fields appear first in iteration order.
 * Used throughout the Fess search system for document data manipulation.
 *
 */
public class DocMap implements Map<String, Object> {

  public void runTest() throws Exception {
    /*
     * Note that we do not run this test under Android at the moment. For Android testing, see
     * AbstractFutureDefaultAtomicHelperTest.
     */

    // First, ensure that our classloaders are initializing the correct helper versions:

    if (isJava8()) {
      checkHelperVersion(getClass().getClassLoader(), "UnsafeAtomicHelper");
    } else {

     * One thread sets alive to false, other threads should see the change immediately.
     */
    @Test
    public void test_aliveField_volatileVisibility() throws Exception {
        // Ensure alive starts as true
        assertTrue(dataStore.alive);

        final int readerThreadCount = 5;
        final long testDurationMs = 200; // Run for 200ms

CYGWIN* | MINGW*)
  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
  native_path() { cygpath --path --windows "$1"; }
  ;;
esac

# set JAVACMD and JAVACCMD
set_java_home() {
  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
  if [ -n "${JAVA_HOME-}" ]; then
    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
      # IBM's JDK on AIX uses strange locations for the executables

            log.get().log(Level.SEVERE, "Exception while executing runnable " + task, e);
          } finally {
            task = null;
          }
        }
      } finally {
        // Ensure that if the thread was interrupted at all while processing the task queue, it
        // is returned to the delegate Executor interrupted so that it may handle the
        // interruption if it likes.