/**
     * 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
     */

    collected using form data (instead of JSON) and that it should have the specific
    fields `username` and `password`.

    All the initialization parameters are extracted from the request.

    Read more about it in the
    [FastAPI docs for Simple OAuth2 with Password and Bearer](https://fastapi.tiangolo.com/tutorial/security/simple-oauth2/).

    ## Example

    ```python
    from typing import Annotated

    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertThat(map.containsKey(key)).isTrue();
    assertThat(segment.accessQueue.peek()).isSameInstanceAs(entry);
    assertThat(segment.accessQueue).hasSize(1);

    ticker.advance(1);
    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertThat(map.containsKey(key)).isTrue();

    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertThat(map.containsKey(key)).isTrue();
    assertThat(segment.accessQueue.peek()).isSameInstanceAs(entry);
    assertThat(segment.accessQueue).hasSize(1);

    ticker.advance(1);
    segment.recordRead(entry, ticker.read());
    segment.expireEntries(ticker.read());
    assertThat(map.containsKey(key)).isTrue();

    @Throws(IOException::class)
    override fun read(
      sink: Buffer,
      byteCount: Long,
    ): Long {
      check(!closed) { "closed" }
      try {
        val read = delegate.read(sink, byteCount)

        if (invokeStartEvent) {
          invokeStartEvent = false
          call.eventListener.responseBodyStart(call)
        }

        if (read == -1L) {
          complete(null)

     *
     * <p>Note: The input stream is validated for consistency with the Extractor interface,
     * but is not actually read. Only the resource name from the parameters is used.</p>
     *
     * @param in The input stream (validated but not read)
     * @param params The parameters map, expected to contain ExtractData.RESOURCE_NAME_KEY

			f, err := os.Open(filepath.Join("testdata", file.Name()))
			if err != nil {
				t.Fatal(err)
			}
			r := NewPReader(f, &ReaderArgs{})
			var record sql.Record
			for {
				record, err = r.Read(record)
				if err != nil {
					break
				}
			}
			r.Close()
			if err != io.EOF {
				t.Fatalf("Reading failed with %s, %s", err, file.Name())
			}
		})

			f, err := os.Open(filepath.Join("testdata", file.Name()))
			if err != nil {
				t.Fatal(err)
			}
			r := NewReader(f, &ReaderArgs{})
			var record sql.Record
			for {
				record, err = r.Read(record)
				if err != nil {
					break
				}
			}
			r.Close()
			if err != io.EOF {
				t.Fatalf("Reading failed with %s, %s", err, file.Name())
			}
		})

 * entries may be counted in {@link Cache#size}, but will never be visible to read or write
 * operations.
 *
 * <p>Certain cache configurations will result in the accrual of periodic maintenance tasks which
 * will be performed during write operations, or during occasional read operations in the absence of
 * writes. The {@link Cache#cleanUp} method of the returned cache will also perform maintenance, but

   *
   * @param file the file to read
   * @param processor the object to which the bytes of the file are passed.
   * @return the result of the byte processor
   * @throws IOException if an I/O error occurs
   * @deprecated Prefer {@code asByteSource(file).read(processor)}.
   */
  @Deprecated
  @InlineMe(
      replacement = "Files.asByteSource(file).read(processor)",
      imports = "com.google.common.io.Files")