class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item = Body(
        openapi_examples={
            "normal": {
                "summary": "A normal example",
                "description": "A **normal** item works correctly.",
                "value": {

    }

    @AfterEach
    void tearDown() throws Exception {
        this.validator = null;
    }

    private void assertViolations(SimpleProblemCollector result, int fatals, int errors, int warnings) {
        assertEquals(fatals, result.getFatals().size(), String.valueOf(result.getFatals()));
        assertEquals(errors, result.getErrors().size(), String.valueOf(result.getErrors()));

    } catch (NoSuchElementException expected) {
    }
  }

  private <T> void assertPermutationsCount(int expected, Collection<List<T>> permutationSet) {
    assertEquals(expected, permutationSet.size());
    Iterator<List<T>> permutations = permutationSet.iterator();
    for (int i = 0; i < expected; i++) {
      assertTrue(permutations.hasNext());
      permutations.next();
    }

    try {
      multiset.add(sampleElement, 2);
      fail("add(Object, int) succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }
    assertCollectionsAreEquivalent(multiset, copy);

    try {
      multiset.remove(sampleElement, 2);
      fail("remove(Object, int) succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

		Parts:            nil,
		Erasure: ErasureInfo{
			Algorithm:    ReedSolomon.String(),
			DataBlocks:   4,
			ParityBlocks: 2,
			BlockSize:    10000,
			Index:        1,
			Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
			Checksums: []ChecksumInfo{{
				PartNumber: 1,
				Algorithm:  HighwayHash256S,
				Hash:       nil,
			}},
		},
		MarkDeleted:      false,
		NumVersions:      1,

	requestCount  int32         // counter holds no. of request in progress.
}

// GetRequestCount - returns number of request in progress.
func (srv *Server) GetRequestCount() int {
	return int(atomic.LoadInt32(&srv.requestCount))
}

// Init - init HTTP server
func (srv *Server) Init(listenCtx context.Context, listenErrCallback func(listenAddr string, err error)) (serve func() error, err error) {

		// a size of 16 is encoded as `10` while a size of 64 KB
		// is `10000`.
		switch {
		case b >= '0' && b <= '9':
			size = size<<4 | int(b-'0')
		case b >= 'a' && b <= 'f':
			size = size<<4 | int(b-('a'-10))
		case b >= 'A' && b <= 'F':
			size = size<<4 | int(b-('A'-10))
		default:
			cr.err = errMalformedEncoding
			return n, cr.err
		}
		if size > maxChunkSize {
			cr.err = errChunkTooBig

//// tab | Python 3.8+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial007.py!}
```

////

এর মানে হল:

* ভেরিয়েবল `items_t` হল একটি `tuple` যা ৩টি আইটেম ধারণ করে, একটি `int`, অন্য একটি `int`, এবং একটি `str`।
* ভেরিয়েবল `items_s` হল একটি `set`, এবং এর প্রতিটি আইটেম হল `bytes` টাইপের।

#### ডিক্ট

একটি `dict` সংজ্ঞায়িত করতে, আপনি ২টি টাইপ প্যারামিটার কমা দ্বারা পৃথক করে দেবেন।

        } else {
            keyStr = CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, keyStr);
        }
        return keyStr;
    }

    @Override
    public int size() {
        return parent.size();
    }

    @Override
    public boolean isEmpty() {
        return parent.isEmpty();
    }

    @Override
    public boolean containsKey(final Object key) {

   * send [http2ErrorCode] after the response body or trailers. For HTTP/1 this will close the
   * socket after the response body or trailers.
   */
  class DoNotReadRequestBody(
    val http2ErrorCode: Int = 0,
  ) : SocketPolicy

  /** Don't trust the client during the SSL handshake. */
  object FailHandshake : SocketPolicy

  /**
   * Shutdown the socket input after sending the response. For testing bad behavior.