code: @Around(value = "execution(* *(..)) && (@annotation(tagReturnValue))")
  	public Object doTagging(ProceedingJoinPoint pjp, TagReturnValue tagReturnValue) throws Throwable {
  		Object result = pjp.proceed();
  		MoSKitoContext.addTag(tagReturnValue.name(), result == null ? null : result.toString(), TagType.ANNOTATED, pjp.getSignature().toShortString());
  		return result;
  	}
docs: Do tagging for @TagReturnValue.