the addon module _output function is not echo'ing anything

[clickstrum]

I'm messing with the addonexample module that ships with WHMCS and tried changing the addonexample_output function to:

 

function addonexample_output($vars) {

echo "foobar";
/*
   $modulelink = $vars['modulelink'];
   $version = $vars['version'];
   $option1 = $vars['option1'];
   $option2 = $vars['option2'];
   $option3 = $vars['option3'];
   $option4 = $vars['option4'];
   $option5 = $vars['option5'];
   $LANG = $vars['_lang'];

   echo '<p>'.$LANG['intro'].'</p>
<p>'.$LANG['description'].'</p>
<p>'.$LANG['documentation'].'</p>';
*/
}

 

I'd expect it to return foobar in the admin addon area for the addon example, but it looks like there is no change (it looks like I haven't even changed anything).

 

I thought perhaps it was a cache issue, but if I make changes to the addonexample_config function, like in one of the name or description fields of the configarray, those changes show up when I refresh the page. I'm working on my issue here, but found I can't get this _output function to do anything.

 

My WHMCS version is 5.2.13.

[clickstrum]

Anyone have any ideas, or any tips? Anything?? The docs are lacking. What is in the docs I've been following 100%, but I'm getting nothing. I tried deleting templates_c, but no help. Anyone?????