private class PushObserverCancel : PushObserver {
      override fun onRequest(
        streamId: Int,
        requestHeaders: List<Header>,
      ): Boolean = true

      override fun onHeaders(
        streamId: Int,
        responseHeaders: List<Header>,
        last: Boolean,
      ): Boolean = true

      @Throws(IOException::class)
      override fun onData(
        streamId: Int,

	buf.Write([]byte{0, 5})
	buf.WriteString("event")

	buf.WriteByte(11)
	buf.WriteString(":event-type")
	buf.WriteByte(7)
	buf.Write([]byte{0, 4})
	buf.WriteString("Cont")

	header := buf.Bytes()
	headerLength := len(header)
	payloadLength := 0
	totalLength := totalByteLength(headerLength, payloadLength)

	buf = new(bytes.Buffer)
	binary.Write(buf, binary.BigEndian, uint32(totalLength))

            }
            responseData.setHttpStatusCode(httpStatusCode);
            for (final Header header : response.getHeaders()) {
                responseData.addMetaData(header.getName(), header.getValue());
            }
            responseData.setMimeType(contentType);
            final Header contentLengthHeader = response.getFirstHeader("Content-Length");
            if (contentLengthHeader == null) {

	}

	// Initialize signature version '4' structured header.
	signV4Values := signValues{}

	var s3Err APIErrorCode
	// Save credential values.
	signV4Values.Credential, s3Err = parseCredentialHeader(strings.TrimSpace(credElement), region, stype)
	if s3Err != ErrNone {
		return sv, s3Err
	}

	// Save signed headers.
	signV4Values.SignedHeaders, s3Err = parseSignedHeader(authFields[1])

    val headers = response.headers
    assertThat(headers.size).isEqualTo(1)
    assertThat(headers.name(0)).isEqualTo(":version")
    assertThat(headers.value(0)).isEqualTo("HTTP/1.1")
  }

  @Test fun http2HeadersListDropsForbiddenHeadersHttp2() {
    val request =
      Request
        .Builder()
        .url("http://square.com/")
        .header("Connection", "upgrade")

                logger.debug("Apply header: key={}, value={}, mimeType={}", k, v, mimeType);
            }
            response.header(k, v);
        });
    }

    protected void adjustActionResponseHeaders(final String mimeType, final BiConsumer<String, String> callback) {
        defaultResponseHeaders.forEach(header -> callback.accept(header.getFirst(), header.getSecond()));

	tests := []struct {
		header      http.Header
		expectedVal bool
	}{
		{
			header: http.Header{
				"Authorization":        []string{"AWS4-HMAC-SHA256 <cred_string>"},
				"X-Amz-Content-Sha256": []string{""},
				"Content-Encoding":     []string{""},
			},
			expectedVal: false,
		},
		{
			header: http.Header{
				AmzObjectLockLegalHold: []string{""},
			},

from typing import Annotated

from fastapi import Depends, FastAPI, Header, HTTPException

app = FastAPI()


async def verify_token(x_token: Annotated[str, Header()]):
    if x_token != "fake-super-secret-token":
        raise HTTPException(status_code=400, detail="X-Token header invalid")


async def verify_key(x_key: Annotated[str, Header()]):
    if x_key != "fake-super-secret-key":

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(user_agent: str | None = Header(default=None)):

    /** Command offset in SMB header */
    int CMD_OFFSET = 4;
    /** Error code offset in SMB header */
    int ERROR_CODE_OFFSET = 5;
    /** Flags offset in SMB header */
    int FLAGS_OFFSET = 9;
    /** Signature offset in SMB header */
    int SIGNATURE_OFFSET = 14;
    /** TID offset in SMB header */
    int TID_OFFSET = 24;
    /** SMB header length */
    int HEADER_LENGTH = 32;