/**
   * Returns a {@link CharSink} view of this {@code ByteSink} that writes characters to this sink as
   * bytes encoded with the given {@link Charset charset}.
   */
  public CharSink asCharSink(Charset charset) {
    return new AsCharSink(charset);
  }

  /**
   * Opens a new {@link OutputStream} for writing to this sink. This method returns a new,
   * independent stream each time it is called.
   *