{* ../../docs_src/background_tasks/tutorial001.py hl[14] *}

`.add_task()` 接收以下参数：

* 在后台运行的任务函数(`write_notification`)。
* 应按顺序传递给任务函数的任意参数序列(`email`)。
* 应传递给任务函数的任意关键字参数(`message="some notification"`)。

## 依赖注入

使用 `BackgroundTasks` 也适用于依赖注入系统，你可以在多个级别声明 `BackgroundTasks` 类型的参数：在 *路径操作函数* 里，在依赖中(可依赖)，在子依赖中，等等。

**FastAPI** 知道在每种情况下该做什么以及如何复用同一对象，因此所有后台任务被合并在一起并且随后在后台运行：

//// tab | Python 3.10+

			Queries("versioning", "")
		// GetBucketNotification
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.GetBucketNotificationHandler)).
			Queries("notification", "")
		// ListenNotification
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.ListenNotificationHandler, noThrottleS3HFlag, traceHdrsS3HFlag)).
			Queries("events", "{events:.*}")

				"application/vnd.symbian.install",
				"application/vnd.syncml+xml",
				"application/vnd.syncml.dm+wbxml",
				"application/vnd.syncml.dm+xml",
				"application/vnd.syncml.dm.notification",
				"application/vnd.syncml.ds.notification",
				"application/vnd.tao.intent-module-archive",
				"application/vnd.tcpdump.pcap",
				"application/vnd.tmobile-livetv",
				"application/vnd.trid.tpt",
				"application/vnd.triscape.mxs",

	cred, _, _ = getReqAccessKeyV4(r, region, serviceS3)
	if cred.AccessKey == "" {
		cred, _, _ = getReqAccessKeyV2(r)
	}
	return cred
}

// Extract request params to be sent with event notification.
func extractReqParams(r *http.Request) map[string]string {
	if r == nil {
		return nil
	}

	region := globalSite.Region()
	cred := getReqAccessCred(r, region)

	principalID := cred.AccessKey

limitations under the License.
==============================================================================*/

#include "tensorflow/c/c_api_experimental.h"

#include "absl/strings/substitute.h"
#include "absl/synchronization/notification.h"
#include "tensorflow/c/c_api.h"
#include "tensorflow/c/c_api_internal.h"
#include "tensorflow/c/checkpoint_reader.h"
#include "tensorflow/c/eager/c_api.h"
#include "tensorflow/c/eager/c_api_internal.h"

"Derivative Works" shall mean any work, whether in Source Code or other
form, that is based on (or derived from) the Program and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship.

"Modified Works" shall mean any work in Source Code or other form that
results from an addition to, deletion from, or modification of the

                    f"This PR #{pr.number} was already notified in comment: {already_notified_comment.url}"
                )
            else:
                logging.info(
                    f"Writing notification comment about PR #{pr.number} in Discussion: #{discussion.number}"
                )
                comment = create_comment(
                    settings=settings,
                    discussion_id=discussion.id,

            context.success(
                    "Total POMs modified: " + overallResult.modifiedPoms().size());
        } else {
            context.info("No POMs required modifications");
        }

        if (!overallResult.errorPoms().isEmpty()) {
            context.failure(
                    "Total POMs with errors: " + overallResult.errorPoms().size());
        }

 * implementation can be created easily by extending this class and implementing the {@link
 * Multiset#entrySet()} method, plus optionally overriding {@link #add(Object, int)} and {@link
 * #remove(Object, int)} to enable modifications to the multiset.
 *
 * <p>The {@link #count} and {@link #size} implementations all iterate across the set returned by
 * {@link Multiset#entrySet()}, as do many methods acting on the set returned by {@link

	auditCollectorPath         collectorPath = "/audit"
	loggerWebhookCollectorPath collectorPath = "/logger/webhook"
	replicationCollectorPath   collectorPath = "/replication"
	notificationCollectorPath  collectorPath = "/notification"
	scannerCollectorPath       collectorPath = "/scanner"
)

const (
	clusterBasePath = "/cluster"
)

type metricsV3Collection struct {
	mgMap       map[collectorPath]*MetricsGroup