By only using `BackgroundTasks` (and not `BackgroundTask`), it's then possible to use it as a *path operation function* parameter and have **FastAPI** handle the rest for you, just like when using the `Request` object directly.

It's still possible to use `BackgroundTask` alone in FastAPI, but you have to create the object in your code and return a Starlette `Response` including it.

This means that you can send only the data that you want to update, leaving the rest intact.

/// note

`PATCH` is less commonly used and known than `PUT`.

And many teams use only `PUT`, even for partial updates.

---> 100%
```

</div>

## Клиент WebSockets

### Рабочее приложение

Скорее всего, в вашей реальной продуктовой системе есть фронтенд, реализованный при помощи современных фреймворков React, Vue.js или Angular.

И наверняка для взаимодействия с бекендом через веб-сокеты вы будете использовать средства фронтенда.

But then the attackers try with username `stanleyjobsox` and password `love123`.

And your application code does something like:

```Python

    assertSame(CharMatcher.any(), CharMatcher.any().or(WHATEVER));

    assertSame(CharMatcher.none(), CharMatcher.none().and(WHATEVER));
    assertSame(WHATEVER, CharMatcher.none().or(WHATEVER));
  }

  // The rest of the behavior of ANY and DEFAULT will be covered in the tests for
  // the text processing methods below.

  public void testWhitespaceBreakingWhitespaceSubset() throws Exception {

            Field maxRecvField = DcerpcBind.class.getDeclaredField("max_recv");
            maxRecvField.setAccessible(true);
            assertEquals(maxRecv, maxRecvField.get(bindWithParams), "Max recv should be set");
        }

        @Test
        @DisplayName("Package constructor should handle null binding")
        void testPackageConstructorWithNullBinding() throws Exception {
            // Given

    assertSame(CharMatcher.any(), CharMatcher.any().or(WHATEVER));

    assertSame(CharMatcher.none(), CharMatcher.none().and(WHATEVER));
    assertSame(WHATEVER, CharMatcher.none().or(WHATEVER));
  }

  // The rest of the behavior of ANY and DEFAULT will be covered in the tests for
  // the text processing methods below.

  public void testWhitespaceBreakingWhitespaceSubset() throws Exception {

// Make sure to bump the internode version at storage-rest-common.go
type RawFileInfo struct {
	// Content of entire xl.meta (may contain data depending on what was requested by the caller.
	Buf []byte `msg:"b,allownil"`
}

// FileInfo - represents file stat information.
// The above means that any added/deleted fields are incompatible.
// Make sure to bump the internode version at storage-rest-common.go
type FileInfo struct {

---

"_Мы использовали библиотеку **FastAPI** для создания сервера **REST**, к которому можно делать запросы для получения **прогнозов**. [для Ludwig]_"

---> 100%
```

</div>

## WebSockets client { #websockets-client }

### In production { #in-production }

In your production system, you probably have a frontend created with a modern framework like React, Vue.js or Angular.

And to communicate using WebSockets with your backend you would probably use your frontend's utilities.