Interceptors can be chained. Suppose you have both a compressing interceptor and a checksumming interceptor: you'll need to decide whether data is compressed and then checksummed, or checksummed and then compressed. OkHttp uses lists to track interceptors, and interceptors are called in order.

![Interceptors Diagram](../assets/images/******@****.***)

///

## Импорт `File` { #import-file }

Импортируйте `File` и `UploadFile` из модуля `fastapi`:

{* ../../docs_src/request_files/tutorial001_an_py39.py hl[3] *}

## Определите параметры `File` { #define-file-parameters }

Создайте параметры `File` так же, как вы это делаете для `Body` или `Form`:

{* ../../docs_src/request_files/tutorial001_an_py39.py hl[9] *}

/// info | Дополнительная информация

 * This class provides common functionality for job execution including process management,
 * logging configuration, JVM options, and timeout handling.
 *
 * <p>Subclasses must implement the abstract methods to define specific job behavior
 * and execution type identification.</p>
 *
 * @version 1.0
 */
public abstract class ExecJob {

    /** Logger instance for this class */

Their sponsorship also demonstrates a strong commitment to the FastAPI **community** (you), showing that they care not only about offering a **great service** but also about supporting a **robust and thriving framework**, FastAPI. 🙇

For example, you might want to try:

    server.enqueue(MockResponse().setSocketPolicy(SocketPolicy.DISCONNECT_DURING_REQUEST_BODY))
    // Limit the size of the request body that the server holds in memory to an arbitrary
    // 3.5 MBytes so this test can pass on devices with little memory.
    server.bodyLimit = 7 * 512 * 1024
    val connection = server.url("/").toUrl().openConnection() as HttpURLConnection
    connection.setRequestMethod("POST")
    connection.setDoOutput(true)

# ---------------
constraints.AssertFalse.message = {item} deve essere falso.
constraints.AssertTrue.message = {item} deve essere vero.
constraints.DecimalMax.message = {item} deve essere minore di {value}.
constraints.DecimalMin.message = {item} deve essere maggiore di {value}.
constraints.Digits.message = {item} deve essere un numero. (Atteso: <numero>.<numero>)
constraints.Future.message = {item} deve essere una data futura.

        final ExceptionMessageBuilder br = new ExceptionMessageBuilder();
        br.addNotice("Too long boundary size so treats it as 404.");
        br.addItem("Advice");
        br.addElement("Against for CVE-2014-0050 (JVN14876762).");
        br.addElement("Boundary size is limited by Framework.");

If the nested type is a managed type (Gradle can generate its implementation), you can define a nested property with:
```
interface NestedType {
    Property<String> getSomeProperty()
}
class Example {
    @Nested
    NestedType getNestedProperty()
}
```

    SUBMULTISET,
    DESCENDING;

    @Override
    public Set<Feature<? super Void>> getImpliedFeatures() {
      return emptySet();
    }
  }

  /** Two bounds (from and to) define how to build a subMultiset. */
  enum Bound {
    INCLUSIVE,
    EXCLUSIVE,
    NO_BOUND;
  }

  List<TestSuite> createDerivedSuites(SortedMultisetTestSuiteBuilder<E> parentBuilder) {

        return AbstractBaseGraph.this.nodeOrder();
      }

      @Override
      public ElementOrder<EndpointPair<N>> edgeOrder() {
        return ElementOrder.unordered(); // Graph doesn't define edge order
      }

      @Override
      public Set<N> adjacentNodes(N node) {
        return AbstractBaseGraph.this.adjacentNodes(node);
      }

      @Override