need := len(buf)         // number of bytes requested by caller
	hdr := r.opts.HeaderSize // remaining header bytes
	var tokens int           // number of tokens to request

	if hdr > 0 { // available tokens go towards header first
		if hdr < b { // all of header can be accommodated
			r.opts.HeaderSize = 0
			need = int(math.Min(float64(b-hdr), float64(need))) // use remaining tokens towards payload

    }

    @Test
    @DisplayName("Should create transform header with correct size")
    void testTransformHeaderSize() {
        // When
        int headerSize = transformHeader.size();

        // Then
        assertEquals(52, headerSize); // SMB2 Transform Header is 52 bytes
    }

    // Note: SMB2 Transform Header doesn't have a protocol ID field

		if ok {
			statusCode = tc.ResponseRecorder.StatusCode
			outputBytes = int64(tc.ResponseRecorder.Size())
			headerBytes = int64(tc.ResponseRecorder.HeaderSize())
			timeToResponse = time.Now().UTC().Sub(tc.ResponseRecorder.StartTime)
			timeToFirstByte = tc.ResponseRecorder.TTFB()
		}

		entry.AccessKey = reqInfo.Cred.AccessKey

		})
		return rinfo
	}

	var headerSize int
	for k, v := range putOpts.Header() {
		headerSize += len(k) + len(v)
	}

	opts := &bandwidth.MonitorReaderOptions{
		BucketOptions: bandwidth.BucketOptions{
			Name:           ri.Bucket,
			ReplicationARN: tgt.ARN,
		},
		HeaderSize: headerSize,
	}
	newCtx := ctx