```

### Technische Details zum JWT-„Subjekt“ `sub`

Die JWT-Spezifikation besagt, dass es einen Schlüssel `sub` mit dem Subjekt des Tokens gibt.

Die Verwendung ist optional, aber dort würden Sie die Identifikation des Benutzers speichern, daher verwenden wir das hier.

				return fmt.Errorf("part.%d.meta has incorrect corresponding part number: expected %d, got %d", partN, partN, pfi.Parts[0].Number)
			}

			partsInfo[i] = pfi.Parts[0]
			return nil
		}, i)
	}

	g.Wait()

	for _, part := range partsInfo {
		if part.Number != 0 && !part.ModTime.IsZero() {
			fi.AddObjectPart(part.Number, part.ETag, part.Size, part.ActualSize, part.ModTime, part.Index, part.Checksums)

		return
	}

	configuredPartSize := minPartSize
	// Use floats for part size for all calculations to avoid
	// overflows during float64 to int64 conversions.
	partSizeFlt := float64(objectSize / maxPartsCount)
	partSizeFlt = math.Ceil(partSizeFlt/float64(configuredPartSize)) * float64(configuredPartSize)

	// Part size.
	partSize = int64(partSizeFlt)
	if partSize == 0 {
		return minPartSize, nil
	}

        boundary = "simple boundary",
        source = Buffer().writeUtf8(multipart),
      )

    val part = parts.nextPart()!!
    assertThat(part.body.readUtf8()).isEqualTo("abcd\r\n--simple boundar\r\n\r\nefgh")

    assertThat(parts.nextPart()).isNull()
  }

  @Test fun `do not need to read entire part`() {
    val multipart =
      """
      |--simple boundary
      |
      |abcd
      |efgh

          this.type = type
        }

      /** Add a part to the body. */
      fun addPart(body: RequestBody) =
        apply {
          addPart(Part.create(body))
        }

      /** Add a part to the body. */
      fun addPart(
        headers: Headers?,
        body: RequestBody,
      ) = apply {
        addPart(Part.create(headers, body))
      }

	listPartsResponse.Parts = make([]Part, len(partsInfo.Parts))
	for index, part := range partsInfo.Parts {
		newPart := Part{}
		newPart.PartNumber = part.PartNumber
		newPart.ETag = "\"" + part.ETag + "\""
		newPart.Size = part.Size
		newPart.LastModified = amztime.ISO8601Format(part.LastModified.UTC())
		newPart.ChecksumCRC32 = part.ChecksumCRC32
		newPart.ChecksumCRC32C = part.ChecksumCRC32C

	sha256sum := ""
	var opts ObjectOptions
	// Iterating over creatPartCases to generate multipart chunks.
	for _, part := range parts {
		_, err = obj.PutObjectPart(context.Background(), part.bucketName, part.objName, part.uploadID, part.PartID, mustGetPutObjReader(t, bytes.NewBufferString(part.inputReaderData), part.inputDataSize, part.inputMd5, sha256sum), opts)
		if err != nil {
			t.Fatalf("%s : %s", instanceType, err)
		}
	}

        System.out.print(paid); // No, this does not print to system.out. It's part of the test
        assertEquals(paid.length(), byteArrayOutputStream.size());
        threadOutputMuxer.associateThreadWithProjectSegment(projectBuildList.get(1));
        System.out.print(in); // No, this does not print to system.out. It's part of the test
        assertEquals(paid.length(), byteArrayOutputStream.size());

```Python hl_lines="14-19"
{!../../../docs_src/events/tutorial003.py!}
```

The first part of the function, before the `yield`, will be executed **before** the application starts.

And the part after the `yield` will be executed **after** the application has finished.

### Async Context Manager

If you check, the function is decorated with an `@asynccontextmanager`.

			continue
		}
		switch header {
		case "expect":
			// Golang http server strips off 'Expect' header, if the
			// client sent this as part of signed headers we need to
			// handle otherwise we would see a signature mismatch.
			// `aws-cli` sets this as part of signed headers.
			//
			// According to
			// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.20
			// Expect header is always of form: