## Використання `BackgroundTasks`

Спочатку імпортуйте `BackgroundTasks` і додайте його як параметр у Вашу *функцію операції шляху* (path operation function) до `BackgroundTasks`:

{* ../../docs_src/background_tasks/tutorial001.py hl[1,13] *}

**FastAPI** автоматично створить об'єкт `BackgroundTasks` і передасть його у цей параметр.


## Створення функції задачі

   * never use this method, preferring instead to call {@code requireNonNull} so as to benefit from
   * its runtime check.
   *
   * <p>An example use case for this method is in implementing an {@code Iterator<T>} whose {@code
   * next} field is lazily initialized. The type of that field would be {@code @Nullable T}, and the
   * code would be responsible for populating a "real" {@code T} (which might still be the value

     * "peek named pipe" operation and return the number of available bytes
     * on the server.
     */
    @Override
    public int available() throws IOException {
        return 0;
    }

    /**
     * Skip n bytes of data on this stream. This operation will not result
     * in any IO with the server. Unlink <code>InputStream</code> value less than

      resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k0(), v0()));
      List<V> expectedValues = copyToList(values);

      Entry<K, Collection<V>> asMapEntry = multimap().asMap().entrySet().iterator().next();
      List<V> asMapValue = (List<V>) asMapEntry.getValue();
      asMapValue.remove(i);
      expectedValues.remove(i);

      assertGet(k0(), expectedValues);
    }
  }

            break;
          case 1:
            assertThat(network.edgeConnectingOrNull(node, otherNode))
                .isEqualTo(edgesConnecting.iterator().next());
            assertThat(network.hasEdgeConnecting(node, otherNode)).isTrue();
            break;
          default:
            assertThat(network.hasEdgeConnecting(node, otherNode)).isTrue();

      throw o == null ? new NullPointerException() : new ClassCastException();
    }

    @Override
    public int size() {
      return 0;
    }

    @Override
    public Iterator<Void> iterator() {
      return emptyIterator();
    }
  }

import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;

/**
 * SMB1 COM_WRITE command implementation.
 *
 * This command writes data to an open file on the server.
 * It's the basic write operation in the SMB1 protocol.
 */
public class SmbComWrite extends ServerMessageBlock {

    private int fid, count, offset, remaining, off;
    private byte[] b;

    /**
     * Constructs an empty write request.

     */
    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Array of descriptive strings for each DOS error condition.
     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",
            "The system cannot find the file specified.", "Bad password.", "The system cannot find the path specified.", "reserved",

     */
    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Array of descriptive strings for each DOS error condition.
     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",
            "The system cannot find the file specified.", "Bad password.", "The system cannot find the path specified.", "reserved",

 * Resolving is the process that selects a {@linkplain #getVersion() particular version}
 * and downloads the artifact in the local repository.  This operation returns a {@link DownloadedArtifact}.
 * </p>
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface Artifact {
    /**
     * {@return a unique identifier for this artifact}.