static LogStream log = LogStream.getInstance();

    /**
     * Reads exactly len bytes from the input stream into the buffer.
     *
     * @param in the input stream to read from
     * @param b the buffer to read into
     * @param off the offset in the buffer to start writing
     * @param len the number of bytes to read
     * @return the number of bytes actually read
     * @throws IOException if an I/O error occurs
     */

  /**
   * Returns the number of bytes required to encode these headers using HTTP/1.1. This is also the
   * approximate size of HTTP/2 headers before they are compressed with HPACK. This value is
   * intended to be used as a metric: smaller headers are more efficient to encode and transmit.
   */
  fun byteCount(): Long {
    // Each header name has 2 bytes of overhead for ': ' and every header value has 2 bytes of

    page.goto("http://localhost:8000/docs")
    page.get_by_role("button", name="POST /data Post Data").click()
    # Manually add the screenshot
    page.screenshot(path="docs/en/docs/img/tutorial/json-base64-bytes/image01.png")

    # ---------------------
    context.close()
    browser.close()


process = subprocess.Popen(
    ["fastapi", "run", "docs_src/json_base64_bytes/tutorial001_py310.py"]
)
try:

以下是更完整的示例。

使用依赖项检查用户名与密码是否正确。

为此要使用 Python 标准模块 [`secrets`](https://docs.python.org/3/library/secrets.html) 检查用户名与密码。

`secrets.compare_digest()` 需要仅包含 ASCII 字符（英语字符）的 `bytes` 或 `str`，这意味着它不适用于像`á`一样的字符，如 `Sebastián`。

为了解决这个问题，我们首先将 `username` 和 `password` 转换为使用 UTF-8 编码的 `bytes` 。

然后我们可以使用 `secrets.compare_digest()` 来确保 `credentials.username` 是 `"stanleyjobson"`，且 `credentials.password` 是`"swordfish"`。

	CRC32 uint32

	// CompressedSize is the compressed size of the file in bytes.
	// If either the uncompressed or compressed size of the file
	// does not fit in 32 bits, CompressedSize is set to ^uint32(0).
	//
	// Deprecated: Use CompressedSize64 instead.
	CompressedSize uint32

	// UncompressedSize is the uncompressed size of the file in bytes.
	// If either the uncompressed or compressed size of the file

`secrets.compare_digest()` повинен отримувати `bytes` або `str`, що містить лише ASCII-символи (англійські), це означає, що він не працюватиме з символами на кшталт `á`, як у `Sebastián`.

Щоб це обійти, ми спочатку перетворюємо `username` і `password` у `bytes`, кодувавши їх у UTF-8.

    void testFileBasicInfoDecode() throws SMBProtocolDecodingException {
        // Given
        byte[] buffer = new byte[64];
        int bufferIndex = 8;

        // Prepare test data in buffer (40 bytes of data)
        // Use SMBUtil to properly encode times in Windows FILETIME format
        SMBUtil.writeTime(TEST_CREATE_TIME, buffer, bufferIndex);
        SMBUtil.writeTime(TEST_LAST_ACCESS_TIME, buffer, bufferIndex + 8);

     * instead of send/receive.
     *
     * @return threshold in bytes
     */
    int getRdmaReadWriteThreshold();

    /**
     * Get maximum RDMA send size
     *
     * @return max send size in bytes
     */
    int getRdmaMaxSendSize();

    /**
     * Get maximum RDMA receive size
     *
     * @return max receive size in bytes
     */
    int getRdmaMaxReceiveSize();

    /**

 *
 * Unlike [okhttp3.ResponseBody], this interface is designed to be implemented by writers and not
 * called by readers.
 */
public interface MockResponseBody {
  /** The length of this response in bytes, or -1 if unknown. */
  public val contentLength: Long

  @Throws(IOException::class)
  public fun writeTo(sink: BufferedSink)

	}
	if !bytes.Equal(xl2.data.find(fi.VersionID), data2) {
		t.Fatal("Find data returned", xl2.data.find(fi.DataDir))
	}

	// Test trimmed
	xl2 = xlMetaV2{}
	trimmed := xlMetaV2TrimData(serialized)
	failOnErr(xl2.Load(trimmed))
	if len(xl2.data) != 0 {
		t.Fatal("data, was not trimmed, bytes left:", len(xl2.data))
	}
	// Corrupt metadata, last 5 bytes is the checksum, so go a bit further back.