bytesIn.writeByte(0x0a) // Literal name (len = 10)
    bytesIn.writeUtf8("custom-bar")
    bytesIn.writeByte(0x0d) // Literal value (len = 13)
    bytesIn.writeUtf8("custom-header")
    bytesIn.writeByte(0x40) // Literal indexed
    bytesIn.writeByte(0x0a) // Literal name (len = 10)
    bytesIn.writeUtf8("custom-baz")
    bytesIn.writeByte(0x0d) // Literal value (len = 13)
    bytesIn.writeUtf8("custom-header")

binary_image = base64.b64decode(image_base64)


def read_image() -> BytesIO:
    return BytesIO(binary_image)


app = FastAPI()


class PNGStreamingResponse(StreamingResponse):
    media_type = "image/png"


@app.get("/image/stream", response_class=PNGStreamingResponse)
async def stream_image() -> AsyncIterable[bytes]:
    with read_image() as image_file:
        for chunk in image_file:

Esto también significa que con `StreamingResponse` tienes la libertad y la responsabilidad de producir y codificar los bytes de datos exactamente como necesites enviarlos, independientemente de las anotaciones de tipos. 🤓

### Transmitir bytes { #stream-bytes }

Uno de los casos de uso principales sería transmitir `bytes` en lugar de strings; por supuesto puedes hacerlo.

{* ../../docs_src/stream_data/tutorial001_py310.py ln[44:47] hl[47] *}

	if !Equal(buf.Bytes(), b) {
		t.Fatalf("incorrect result from WriteRune: %q not %q", buf.Bytes(), b)
	}

	p := make([]byte, utf8.UTFMax)
	// Read it back with ReadRune
	for r := rune(0); r < NRune; r++ {
		size := utf8.EncodeRune(p, r)
		nr, nbytes, err := buf.ReadRune()
		if nr != r || nbytes != size || err != nil {
			t.Fatalf("ReadRune(%U) got %U,%d not %U,%d (err=%s)", r, nr, nbytes, r, size, err)
		}

### Bytes Akışı { #stream-bytes }

Başlıca kullanım senaryolarından biri string yerine `bytes` akıtmaktır; elbette bunu yapabilirsiniz.

{* ../../docs_src/stream_data/tutorial001_py310.py ln[44:47] hl[47] *}

## Özel bir `PNGStreamingResponse` { #a-custom-pngstreamingresponse }

Isso também significa que, com `StreamingResponse`, você tem a liberdade e a responsabilidade de produzir e codificar os bytes exatamente como precisam ser enviados, independentemente das anotações de tipo. 🤓

### Transmitir bytes { #stream-bytes }

Um dos principais casos de uso é transmitir `bytes` em vez de strings; você pode fazer isso sem problemas.

{* ../../docs_src/stream_data/tutorial001_py310.py ln[44:47] hl[47] *}

### Bytes streamen { #stream-bytes }

Einer der Hauptanwendungsfälle wäre, `bytes` statt Strings zu streamen, das können Sie selbstverständlich tun.

{* ../../docs_src/stream_data/tutorial001_py310.py ln[44:47] hl[47] *}

This also means that with `StreamingResponse` you have the **freedom** and **responsibility** to produce and encode the data bytes exactly as you need them to be sent, independent of the type annotations. 🤓

### Stream Bytes { #stream-bytes }

One of the main use cases would be to stream `bytes` instead of strings, you can of course do it.

{* ../../docs_src/stream_data/tutorial001_py310.py ln[44:47] hl[47] *}

### Потоковая передача байтов { #stream-bytes }

Один из основных сценариев — стримить `bytes` вместо строк, и, конечно, это можно сделать.

{* ../../docs_src/stream_data/tutorial001_py310.py ln[44:47] hl[47] *}

## Пользовательский `PNGStreamingResponse` { #a-custom-pngstreamingresponse }

      sink.writeByte(accumulator.toInt())
    }
  }

  fun encodedLength(bytes: ByteString): Int {
    var bitCount = 0L

    for (i in 0 until bytes.size) {
      val byteIn = bytes[i] and 0xff
      bitCount += CODE_BIT_COUNTS[byteIn].toLong()
    }

    return ((bitCount + 7) shr 3).toInt() // Round up to an even byte.
  }

  fun decode(
    source: BufferedSource,
    byteCount: Long,