return nil
}

func (target *MySQLTarget) init() error {
	return target.initOnce.Do(target.initMySQL)
}

func (target *MySQLTarget) initMySQL() error {
	args := target.args

	db, err := sql.Open("mysql", args.DSN)
	if err != nil {
		target.loggerOnce(context.Background(), err, target.ID().String())
		return err
	}
	target.db = db

	if args.MaxOpenConnections > 0 {

	return func(nspath string) (NetnsCloser, error) {
		nspathInContainer := filepath.Join(hostMountsPath, nspath)
		ns, err := OpenNetns(nspathInContainer)
		if err != nil {
			err = fmt.Errorf("failed to open netns: %w. Make sure that the netns host path %s is mounted in under %s in the container", err, nspath, hostMountsPath)
			log.Error(err.Error())
		}
		return ns, err
	}

                logger.info("Close {}", docIndex);
                searchEngineClient.admin().indices().prepareOpen(docIndex).execute(
                        ActionListener.wrap(res2 -> logger.info("Open {}", docIndex), e -> logger.warn("Failed to open {}", docIndex, e)));
            }, e -> logger.warn("Failed to close {}", docIndex, e)));
        });
        saveInfo(messages -> messages.addSuccessStartedDataUpdate(GLOBAL));

Você pode:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">Me siga no **GitHub**</a>.
    * Ver também outros projetos Open Source criados por mim que podem te ajudar.
    * Me seguir para saber quando um novo projeto Open Source for criado.
* <a href="https://twitter.com/tiangolo" class="external-link" target="_blank">Me siga no **Twitter**</a>.

)

// Initialize the queue store.
func setUpQueueStore(directory string, limit uint64) (Store[TestItem], error) {
	queueStore := NewQueueStore[TestItem](queueDir, limit, testItemExt)
	if oErr := queueStore.Open(); oErr != nil {
		return nil, oErr
	}
	return queueStore, nil
}

// Tear down queue store.
func tearDownQueueStore() error {
	return os.RemoveAll(queueDir)
}

// TestQueueStorePut - tests for store.Put

  return parsed_args


def parse_log(file_path: str,
              verbose: bool = False) -> ResultDictType:
  """Finds ResultStore links, and tries to determine their status."""
  with open(file_path, 'r', encoding='utf-8', errors='ignore') as f:
    log_lines = f.read().splitlines()

  result_store_links: ResultDictType = {}
  current_url = None
  for i in range(len(log_lines)):
    line = log_lines[i]

				</component>
			</arg>
		</postConstruct>
	</component>
	<component name="osddHelper" class="org.codelibs.fess.helper.OsddHelper">
		<property name="osddPath">"/WEB-INF/orig/open-search/osdd.xml"</property>
		<property name="encoding">"UTF-8"</property>
	</component>
	<component name="suggestHelper" class="org.codelibs.fess.helper.SuggestHelper">
	</component>

	<groupId>org.codelibs</groupId>
	<artifactId>jcifs</artifactId>
	<version>2.1.40-SNAPSHOT</version>
	<packaging>jar</packaging>
	<name>jCIFS</name>
	<url>https://github.com/codelibs/jcifs</url>
	<description>JCIFS is an Open Source client library that implements the CIFS/SMB networking protocol in 100% Java</description>
	<licenses>
		<license>
			<name>GNU Lesser General Public License, version 2.1</name>

    if (cmp < 0) {
      return aggregateBelowRange(aggr, node.left);
    } else if (cmp == 0) {
      switch (range.getLowerBoundType()) {
        case OPEN:
          return aggr.nodeAggregate(node) + aggr.treeAggregate(node.left);
        case CLOSED:
          return aggr.treeAggregate(node.left);
      }
      throw new AssertionError();
    } else {

例如，<a href="https://docs.python.org/zh-cn/3/tutorial/inputoutput.html#reading-and-writing-files" class="external-link" target="_blank">你可以使用`with`读取文件</a>：

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

在底层，`open("./somefile.txt")`创建了一个被称为"上下文管理器"的对象。

当 `with` 代码块结束时，它会确保关闭文件，即使发生了异常也是如此。

当你使用 `yield` 创建一个依赖项时，**FastAPI** 会在内部将其转换为上下文管理器，并与其他相关工具结合使用。