holdLatch.countDown();
            completeLatch.await();
            longRunningThread.join();

            assertEquals(0, cbWithTracking.getActiveRequests(), "Active requests should be 0 after completion");

        } finally {
            cbWithTracking.close();
        }
    }

    @Test
    public void testRollingWindowMetrics() throws Exception {

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

* <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>の場合:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

以前は不可能だと考えていたコードでさえ補完されます。例えば、リクエストからのJSONボディ（ネストされている可能性がある）内の `price`キーです。

// Check crawling status
while (crawler.crawlerContext.getStatus() == CrawlerStatus.RUNNING) {
    Thread.sleep(1000);
    System.out.println("Crawling in progress...");
}

// Wait for completion
crawler.awaitTermination();
System.out.println("Crawling completed");
```

### Custom Content Extractor

```java
public class CustomExtractor extends AbstractExtractor {
    @Override

                    }
                });
            }

            // Start all threads
            for (Thread t : threads) {
                t.start();
            }

            // Wait for completion
            for (Thread t : threads) {
                t.join();
            }

            // Verify thread safety - no unexpected exceptions

     *
     * <p>The method:</p>
     * <ul>
     *   <li>Creates crawler threads for each data configuration</li>
     *   <li>Manages concurrent execution based on thread count limits</li>
     *   <li>Monitors thread completion and handles cleanup</li>
     *   <li>Records execution timing and statistics</li>
     * </ul>
     *
     * @param sessionId unique identifier for this crawling session

                    }
                }
            }

            @Override
            protected ResponseData getResponseData(final String uri, final boolean includeContent) {
                // Simulate quick completion before timeout
                ResponseData responseData = new ResponseData();
                responseData.setHttpStatusCode(200);
                return responseData;
            }
        };

                    }
                }
            }

            @Override
            protected ResponseData getResponseData(final String uri, final boolean includeContent) {
                // Simulate quick completion before timeout
                ResponseData responseData = new ResponseData();
                responseData.setHttpStatusCode(200);
                return responseData;
            }
        };

...на:

```Python
        ... "item_price": item.price ...
```

...і побачите, як ваш редактор автоматично заповнюватиме атрибути та знатиме їхні типи:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

Для більш повного ознайомлення з додатковими функціями, перегляньте <a href="https://fastapi.tiangolo.com/tutorial/">Туторіал - Посібник Користувача</a>.

**Spoiler alert**: туторіал - посібник користувача містить:

        FtpClient client = new FtpClient() {
            @Override
            protected ResponseData getResponseData(final String uri, final boolean includeContent) {
                // Simulate quick completion before timeout
                ResponseData responseData = new ResponseData();
                responseData.setHttpStatusCode(200);
                return responseData;
            }
        };

                    }
                }
            }

            @Override
            protected ResponseData getResponseData(final String uri, final boolean includeContent) {
                // Simulate quick completion before timeout
                ResponseData responseData = new ResponseData();
                responseData.setHttpStatusCode(200);
                return responseData;
            }
        };