You can define files to be uploaded by the client using `File`.

/// info

To receive uploaded files, first install [`python-multipart`](https://github.com/Kludex/python-multipart).

Make sure you create a [virtual environment](../virtual-environments.md), activate it, and then install it, for example:

```console
$ pip install python-multipart
```

This is because uploaded files are sent as "form data".

///

///

### Создайте `APIRouter` для обратного вызова { #create-a-callback-apirouter }

Сначала создайте новый `APIRouter`, который будет содержать один или несколько обратных вызовов.

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[1,23] *}

### Создайте *операцию пути* для обратного вызова { #create-the-callback-path-operation }

   * the least significant bit zero is chosen. (In such cases, both of the nearest representable
   * values are even integers; this method returns the one that is a multiple of a greater power of
   * two.)
   *
   * @throws ArithmeticException if {@code mode} is {@link RoundingMode#UNNECESSARY} and {@code x}
   *     is not precisely representable as a {@code double}
   * @since 30.0
   */

  private final LineBuffer lineBuf =
      new LineBuffer() {
        @Override
        protected void handleLine(String line, String end) {
          lines.add(line);
        }
      };

  /** Creates a new instance that will read lines from the given {@code Readable} object. */
  public LineReader(Readable readable) {
    this.readable = checkNotNull(readable);

 *
 * @author Kevin Bourrillion
 * @author Jens Nyman
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
public final class FakeTimeLimiter implements TimeLimiter {
  /** Creates a new {@link FakeTimeLimiter}. */
  public FakeTimeLimiter() {}

  @CanIgnoreReturnValue // TODO(kak): consider removing this
  @Override
  public <T> T newProxy(

import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Creates, based on your criteria, a JUnit test suite that exhaustively tests a {@code
 * SortedSetMultimap} implementation.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
public class SortedSetMultimapTestSuiteBuilder<K, V>

   * #previous()} can retrieve the preceding {@code position} elements.
   *
   * @throws IndexOutOfBoundsException if {@code position} is negative or is greater than {@code
   *     size}
   * @throws IllegalArgumentException if {@code size} is negative
   */
  protected AbstractIndexedListIterator(int size, int position) {
    checkPositionIndex(position, size);

 *            The type of the second value
 */
public class Pair<T1, T2> {

    /** The first value */
    protected T1 first;

    /** The second value */
    protected T2 second;

    /**
     * Creates and returns a pair of two values.
     *
     * @param <T1>
     *            The type of the first value
     * @param <T2>
     *            The type of the second value
     * @param first

    private static final Logger log = LoggerFactory.getLogger(SmbComClose.class);

    private final int fid;
    private final long lastWriteTime;

    /**
     * Creates a new SMB1 close file request.
     *
     * @param config the CIFS configuration
     * @param fid the file identifier to close
     * @param lastWriteTime the last write time to set on the file
     */

            pomArtifact =
                    new DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), "pom", artifact.getVersion());
        }

        return pomArtifact;
    }

    /**
     * Creates POM artifact out of passed in artifact by dropping classifier (if exists) and rewriting extension to
     * "pom". Unconditionally, unlike {@link #toPomArtifact(Artifact)} that does this only for artifacts without
     * classifiers.