} else {
      assertNull(task.get(UNEXPECTED_HANG_DELAY_MILLIS, TimeUnit.MILLISECONDS));
    }
  }

  @Override
  protected void tearDown() throws Exception {
    // We don't want to leave stray threads running after each test. At this point, every thread
    // launched by this test is either:
    //
    // (a) Blocked attempting to enter the monitor.
    // (b) Waiting for the single guard to become satisfied.

      </a>
    </div>
    <div class="item">
      <a class="announce-link" href="https://www.linkedin.com/company/fastapi" target="_blank">
        <span class="twemoji linkedin">
          {% include ".icons/fontawesome/brands/linkedin.svg" %}
        </span> Follow <strong>FastAPI</strong> on <strong>LinkedIn</strong> to stay updated
      </a>
    </div>

  }

  /**
   * Returns an immutable list containing the given elements, sorted according to their natural
   * order. The sorting algorithm used is stable, so elements that compare as equal will stay in the
   * order in which they appear in the input.
   *
   * <p>If your data has no duplicates, or you wish to deduplicate elements, use {@code

And if the server is restarted (for example after updates, or migrations from the cloud provider) you probably **won't notice it**. And because of that, you won't even know that you have to restart the process manually. So, your API will just stay dead. 😱

### Run Automatically on Startup { #run-automatically-on-startup }

            SMBUtil.writeInt2(445, buffer, offset + 2); // sin_port
            System.arraycopy(address.getAddress(), 0, buffer, offset + 4, 4); // sin_addr
            // Remaining bytes stay zero-filled
        }
    }

    private static InetAddress parseSockaddr(byte[] data, int offset) {
        try {
            int family = SMBUtil.readInt2(data, offset);

This makes it easy to generate up-to-date **documentation**, client libraries (<abbr title="Software Development Kits">**SDKs**</abbr>) in multiple languages, and **testing** or **automation workflows** that stay in sync with your code.

In this guide, you'll learn how to generate a **TypeScript SDK** for your FastAPI backend.

## Open Source SDK Generators { #open-source-sdk-generators }

        assertTrue(keyManager.hasSessionKey(sessionId + ".v2"), "Version 2 should exist");

        // Remove main key
        keyManager.removeSessionKey(sessionId);

        // Verify main key is removed (archives stay)
        assertFalse(keyManager.hasSessionKey(sessionId), "Main key should be removed");
        // Note: Archives are not automatically removed when removing main key
    }

```Python hl_lines="14-17" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

That way, the original `APIRouter` will stay unmodified, so we can still share that same `app/internal/admin.py` file with other projects in the organization.

The result is that in our app, each of the *path operations* from the `admin` module will have:

And there are several ways to get help too.

## Subscribe to the newsletter { #subscribe-to-the-newsletter }

You can subscribe to the (infrequent) [**FastAPI and friends** newsletter](newsletter.md){.internal-link target=_blank} to stay updated about:

* News about FastAPI and friends 🚀
* Guides 📝
* Features ✨
* Breaking changes 🚨
* Tips and tricks ✅

## Follow FastAPI on X (Twitter) { #follow-fastapi-on-x-twitter }

            final ByteBuffer buffer = ByteBuffer.wrap(nonce);
            buffer.order(java.nio.ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(counter);
            // Remaining bytes (if any) stay zero-padded
        }

        return nonce;
    }

    /**
     * Generate a secure random nonce for initial session setup.
     * This method can be used when enhanced randomness is required,