code: @Override
      protected void appendCharSequence(EncodingState encodingState, CharSequence csq, int start, int end) throws IOException {
          CharSequences.writeCharSequence(target, csq, start, end);
      }
docs: /* (non-Javadoc)
  @see AbstractEncodedAppender#appendCharSequence(EncodingState, java.lang.CharSequence, int, int)