{* ../../docs_src/background_tasks/tutorial001_py39.py hl[6:9] *}

## Add the background task { #add-the-background-task }

Inside of your *path operation function*, pass your task function to the *background tasks* object with the method `.add_task()`:

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[14] *}

`.add_task()` receives as arguments:

* A task function to be run in the background (`write_notification`).

            task.dependsOn(tasks.named("assembleSamples"));
        });

        tasks.named(LifecycleBasePlugin.CHECK_TASK_NAME, task -> task.dependsOn(checkDeadInternalLinks));
    }

    private void checkMultiLangSnippetsAreValid(ProjectLayout layout, TaskContainer tasks, GradleDocumentationExtension extension) {

        TaskProvider<Javadoc> javadocAll = tasks.register("javadocAll", Javadoc.class, task -> {
            task.setGroup("documentation");
            task.setDescription("Generate Javadocs for all API classes");

            // TODO: This breaks if version is changed later
            task.setTitle("Gradle API " + project.getVersion());

            StandardJavadocDocletOptions options = (StandardJavadocDocletOptions) task.getOptions();

    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

    // Start the task to put it in the RUNNING state.  Have to use a separate
    // thread because the task will block on the task latch after unblocking
    // the run latch.
    exec.execute(task);
    runLatch.await();
    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

    if (signArtifacts) {
        // Otherwise we get
        // ask ':tooling-api:publishGradleDistributionPublicationToRemoteRepository' uses this output of task ':tooling-api:signLocalPublication'
        // without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed.
        tasks.named("publishGradleDistributionPublicationToRemoteRepository") {

   * turn, and does not create any threads of its own.
   *
   * <p>After execution begins on a thread from the {@code delegate} {@link Executor}, tasks are
   * polled and executed from a task queue until there are no more tasks. The thread will not be
   * released until there are no more tasks to run.
   *
   * <p>If a task is submitted while a thread is executing tasks from the task queue, the thread

    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

    // Start the task to put it in the RUNNING state.  Have to use a separate
    // thread because the task will block on the task latch after unblocking
    // the run latch.
    exec.execute(task);
    runLatch.await();
    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

                "Method com.example.Task.getIsFailOnError(): Is not annotated with @Incubating. Reason for accepting this: Upgraded property" to listOf("Method added to public class"),
                "Method com.example.Task.getIsFailOnError(): Is not annotated with @since 2.0. Reason for accepting this: Upgraded property" to listOf("Method added to public class"),

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[1,13] *}

**FastAPI** создаст объект типа `BackgroundTasks` для вас и передаст его через этот параметр.

## Создание функции для фоновой задачи { #create-a-task-function }

Создайте функцию, которую нужно запустить как фоновую задачу.

Это обычная функция, которая может принимать параметры.

import common.toCapitalized
import model.CIBuildModel
import model.Stage

class SmokeTests(
    model: CIBuildModel,
    stage: Stage,
    testJava: JvmCategory,
    id: String,
    task: String = "smokeTest",
    splitNumber: Int = 1,
    flakyTestStrategy: FlakyTestStrategy,
) : OsAwareBaseGradleBuildType(os = Os.LINUX, stage = stage, init = {