position++;
      return c;
    }

    @CanIgnoreReturnValue
    char consumeCharacter(char c) {
      checkState(hasMore());
      checkState(previewChar() == c);
      position++;
      return c;
    }

    char previewChar() {
      checkState(hasMore());
      return input.charAt(position);
    }

    boolean hasMore() {

    return longs.length();
  }

  /**
   * Gets the current value at position {@code i}.
   *
   * @param i the index
   * @return the current value
   */
  public final double get(int i) {
    return longBitsToDouble(longs.get(i));
  }

  /**
   * Atomically sets the element at position {@code i} to the given value.
   *
   * @param i the index
   * @param newValue the new value

	"sync/atomic"
)

const (
	chunk    = 4095 // ~4k
	maxUint  = ^uint(0)
	maxInt   = int64(maxUint >> 1)
	nullByte = byte(0)
)

type scanner struct {
	pos       int64 // position in reader
	ipos      int64 // internal buffer position
	ifill     int64 // internal buffer fill
	end       int64
	buf       [chunk + 1]byte // internal buffer (with a lookback size of 1)
	nbuf      [chunk]byte     // next internal buffer

        m.region(pos, input.length());
        return m.lookingAt();
    }

    public String region() {
        return input.substring(markPos, pos);
    }

    /**
     * Moves the position to the next instance of the given character, or the end of the input if not found.
     */
    public void find(char c) {
        int cpos = pos;
        while (cpos < input.length()) {

    b.clear();
  }

  static void flip(Buffer b) {
    b.flip();
  }

  static void limit(Buffer b, int limit) {
    b.limit(limit);
  }

  static void position(Buffer b, int position) {
    b.position(position);
  }

  private Java8Compatibility() {}

        offset: Annotated[
            int,
            Doc(
                """
                The position in bytes to seek to in the file.
                """
            ),
        ],
    ) -> None:
        """
        Move to a position in the file.

        Any next read or write will be done from that position.

        To be awaitable, compatible with async, this is run in threadpool.
        """

   */
  protected void processRemaining(ByteBuffer bb) {
    Java8Compatibility.position(bb, bb.limit()); // move at the end
    Java8Compatibility.limit(bb, chunkSize + 7); // get ready to pad with longs
    while (bb.position() < chunkSize) {
      bb.putLong(0);
    }
    Java8Compatibility.limit(bb, chunkSize);
    Java8Compatibility.flip(bb);
    process(bb);
  }

    b.clear();
  }

  static void flip(Buffer b) {
    b.flip();
  }

  static void limit(Buffer b, int limit) {
    b.limit(limit);
  }

  static void position(Buffer b, int position) {
    b.position(position);
  }

  private Java8Compatibility() {}

  @Override
  int indexOf(@Nullable Object target) {
    if (target == null) {
      return -1;
    }
    int position;
    try {
      position = Collections.binarySearch(elements, target, unsafeComparator());
    } catch (ClassCastException e) {
      return -1;
    }
    return (position >= 0) ? position : -1;
  }

  @Override
  ImmutableList<E> createAsList() {

        fi
        # Roll the args list around exactly as many times as the number of
        # args, so each arg winds up back in the position where it started, but
        # possibly modified.
        #
        # NB: a `for` loop captures its iteration list before it begins, so
        # changing the positional parameters here affects neither the number of
        # iterations, nor the values presented in `arg`.