}

  /**
   * Starts a {@link ClosingFuture} pipeline by submitting a callable block to an executor.
   *
   * @throws java.util.concurrent.RejectedExecutionException if the task cannot be scheduled for
   *     execution
   */
  public static <V extends @Nullable Object> ClosingFuture<V> submit(
      ClosingCallable<V> callable, Executor executor) {
    checkNotNull(callable);

		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-fileupload2-jakarta-servlet6</artifactId>
			<version>${commons.fileupload.version}</version>
		</dependency>

		<!-- scheduler -->
		<dependency>
			<groupId>org.lastaflute.job</groupId>
			<artifactId>lasta-job</artifactId>
			<version>${lasta.job.version}</version>
		</dependency>

		<!-- mail -->
		<dependency>

    protected CloseableHttpClient httpClient;

    /** Cached availability status of the LLM provider. */
    protected volatile Boolean cachedAvailability = null;

    /** The scheduled task for periodic availability checks. */
    protected TimeoutTask availabilityCheckTask;

    /** Semaphore for limiting concurrent LLM requests. Initialized lazily in init(). */

			}
			index := index
			// When we are going to return error, attempt to delete success
			// on some of the drives, if we cannot we do not have to notify
			// caller this dangling object will be now scheduled to be removed
			// via active healing.
			dg.Go(func() error {
				return disks[index].DeleteVersion(context.Background(), dstBucket, dstEntry, metadata[index], false, DeleteOptions{
					UndoWrite:  true,

              // refresh is a no-op if loading is pending
              // if checkTime, we want to check *after* acquiring the lock if refresh still needs
              // to be scheduled
              return null;
            }

            // continue returning old value while loading
            ++modCount;
            LoadingValueReference<K, V> loadingValueReference =

              // refresh is a no-op if loading is pending
              // if checkTime, we want to check *after* acquiring the lock if refresh still needs
              // to be scheduled
              return null;
            }

            // continue returning old value while loading
            ++modCount;
            LoadingValueReference<K, V> loadingValueReference =

### Internal

* 👷 Always run tests on push to `master` branch and when run by scheduler. PR [#14940](https://github.com/fastapi/fastapi/pull/14940) by [@YuriiMotov](https://github.com/YuriiMotov).