code: public final void printLongString(CharSequence text)
          throws IOException
      {
          if (text == null)
          {
              appendAscii("null.string");
          }
          else
          {
              appendAscii(TRIPLE_QUOTES);
              printCodePoints(text, LONG_STRING_ESCAPE_CODES);
              appendAscii(TRIPLE_QUOTES);
          }
      }
docs: Print an Ion triple-quoted string
  @param text
  @throws IOException