code: public void write(OutputStream out, Map<String, String> outputProperties) throws TransformerException {
  		write(new Utf8Writer(out), outputProperties);
  	}
docs: Writes the xCal document to an output stream.
  @param out the output stream to write to (UTF-8 encoding will be used)
  @param outputProperties properties to assign to the JAXP transformer (see
  {@link Transformer#setOutputProperty})
  @throws TransformerException if there's a problem writing to the output
  stream