code: public StringBuilder relatedTo(HttpCode<TRANS, ?> code, StringBuilder sb) {
  			boolean first = true;
  			for(Pair<String, Pair<HttpCode<TRANS, ?>, List<Pair<String, Object>>>> pair : types) {
  				if(code==null || pair.y.x == code) {
  					if(first) {
  						first = false;
  					} else {
  						sb.append(',');
  					}
  					sb.append(pair.x);
  					for(Pair<String,Object> prop : pair.y.y) {
  						// Don't print "Q".  it's there for internal use, but it is only meaningful for "Accepts"
  						if(!prop.x.equals(Q) || !prop.y.equals(1f) ) {
  							sb.append(';');
  							sb.append(prop.x);
  							sb.append('=');
  							sb.append(prop.y);
  						}
  					}
  				}
  			}
  			return sb;
  		}
docs: Print on String Builder content related to specific Code
  
  This is for Reporting and Debugging purposes, so the content is not cached.
  
  If code is "null", then all content is matched
  
  @param code
  @return