docs: public String getDescription() {
  		String spacer = "";
  		for (int i = 0; i < nesting; i++) spacer += spacing;
  		String ret = spacer + "[" + this.getClass().getSimpleName() + " vars: [";
  		ret += variableType.getSimpleName();
  		ret += "] constraints: [";
  		for (Class<?> c : this.constraintTypes) ret += c.getSimpleName();
  		return ret + "]]";
  	}