sh "echo run Its"
        sh "./mvnw -e -B -V install $extraArgs"
      }
    }
    finally {
      junit testResults: '**/target/test-results-surefire/*.xml', allowEmptyResults: true
    }
  }

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package target

import (
	"sync"
	"sync/atomic"
)

// Inspired from Golang sync.Once but it is only marked
// initialized when the provided function returns nil.

type lazyInit struct {
	done uint32

/// info | Información

Para usar `EmailStr`, primero instala <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, activarlo, y luego instalarlo, por ejemplo:

```console
$ pip install email-validator
```

o con:

```console

		prevEp, _ := url.Parse(prevInfo.Endpoint)
		targets, err := globalBucketTargetSys.ListBucketTargets(ctx, bucket)
		if err != nil {
			continue // site healing will take care of configuring new targets
		}
		for _, target := range targets.Targets {
			if target.SourceBucket == bucket &&
				target.TargetBucket == bucket &&
				target.Endpoint == prevEp.Host &&
				target.Secure == (prevEp.Scheme == "https") &&

/// note | Hinweis

Weitere Informationen finden Sie in Starlettes Dokumentation zum <a href="https://www.starlette.dev/testclient/#testing-websocket-sessions" class="external-link" target="_blank">Testen von WebSockets</a>.

Copy the example in a file `main.py`:

{* ../../docs_src/security/tutorial001_an_py39.py *}

## Run it { #run-it }

/// info

The <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a> package is automatically installed with **FastAPI** when you run the `pip install "fastapi[standard]"` command.

    * You can also add [`Security` dependencies with `scopes`](../advanced/security/oauth2-scopes.md){.internal-link target=_blank}.

/// tip

     | ...
     |
     | NOTE: If you just wanted to inject this configuration whenever someone set 'target-env' to
     |       anything, you could just leave off the <value/> inside the activation-property.
     |
    <profile>
      <id>env-dev</id>

      <activation>
        <property>
          <name>target-env</name>
          <value>dev</value>
        </property>
      </activation>

            return false;
        }

        return false;
    }

    /**
     * Checks if a model version is greater than or equal to a target version.
     *
     * @param modelVersion the model version to check
     * @param targetVersion the target version to compare against
     * @return true if modelVersion >= targetVersion
     */

///

### 尝试带有依赖项的 WebSockets

如果您的文件名为 `main.py`，请使用以下命令运行应用程序：

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

在浏览器中打开 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>。