*
   * @since 19.0
   */
  public static HashFunction concatenating(
      HashFunction first, HashFunction second, HashFunction... rest) {
    // We can't use Lists.asList() here because there's no hash->collect dependency
    List<HashFunction> list = new ArrayList<>();
    list.add(first);
    list.add(second);
    Collections.addAll(list, rest);
    return new ConcatenatedHashFunction(list.toArray(new HashFunction[0]));
  }

        return lenToRead;
      }
    }
  }

  /**
   * @param input the size of the input source
   * @param offset the first argument to {@link ByteSource#slice}
   * @param length the second argument to {@link ByteSource#slice}
   * @param expectRead the number of bytes we expect to read
   */
  private static void assertCorrectSlice(int input, int offset, long length, int expectRead)
      throws IOException {

     *
     * @param config the configuration to use
     * @param fid the file ID of the named pipe
     * @param data the data buffer to send
     * @param off the offset in the data buffer
     * @param len the length of data to send
     */
    public TransTransactNamedPipe(final Configuration config, final int fid, final byte[] data, final int off, final int len) {

        TestIterator it = TestIterator.create(tree, parent, "*", null, 0, initial, List.of(new FileEntry[][] { new FileEntry[] {} }))
                .throwOnCloseInternal();

        // Act: first next() returns initial, second triggers close which throws internally but is handled
        assertTrue(it.hasNext());
        assertEquals("first", it.next().getName());
        assertFalse(it.hasNext()); // After exhaustion, hasNext should return false

                log.debug("Error closing server socket", e);
            }
        }

        if (serverThread != null) {
            try {
                serverThread.join(5000); // Wait up to 5 seconds
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
            }
        }

        registrations.clear();
        log.info("Mock witness service stopped");

    }

  private var body: Buffer? = null

  var throttleBytesPerPeriod: Long = Long.MAX_VALUE
    private set
  private var throttlePeriodAmount = 1L
  private var throttlePeriodUnit = TimeUnit.SECONDS

  @set:JvmName("socketPolicy")
  var socketPolicy: SocketPolicy = SocketPolicy.KEEP_OPEN

  @set:JvmName("http2ErrorCode")
  var http2ErrorCode: Int = -1

  private var bodyDelayAmount = 0L

{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## Technical Details { #technical-details }

FastAPI implements some SSE best practices out of the box.

            """
        ),
    ] = None
    raw_data: Annotated[
        str | None,
        Doc(
            """
            Raw string to send as the `data:` field **without** JSON encoding.

            Use this when you need to send pre-formatted text, HTML fragments,
            CSV lines, or any non-JSON payload. The string is placed directly
            into the `data:` field as-is.

    FluentIterable<TimeUnit> unused = FluentIterable.from(TimeUnit.values()).append(SECONDS);
  }

  public void testFromArrayAndIteratorRemove() {
    FluentIterable<TimeUnit> units = FluentIterable.from(TimeUnit.values());
    assertThrows(UnsupportedOperationException.class, () -> removeIf(units, equalTo(SECONDS)));
  }

  public void testFrom() {
    assertEquals(
        ImmutableList.of(1, 2, 3, 4),

		if offset < 0 {
			return 0, errors.New("Invalid offset")
		}
		d.idx = offset
	case io.SeekCurrent:
		if d.idx+offset < 0 {
			return 0, errors.New("Invalid offset")
		}
		d.idx += offset
	case io.SeekEnd:
		if d.length+offset < 0 {
			return 0, errors.New("Invalid offset")
		}
		d.idx = d.length + offset
	}
	return d.idx, nil
}

func TestDummyDataGenerator(t *testing.T) {