Having a little trouble embedding a custom template inside postbit_legacy

[Bobred]

I've created a template called postbit_customrep, containing a word of text only.

I then created a plugin in the hook global_start, containing:

PHP Code:

$templater = vB_Template::create('postbit_customrep');

$template_hook[postbit_customrep] .= $templater->render(); 


And in postbit_legacy I placed this in the location I wanted the template displayed:

{vb:raw template_hook.postbit_customrep}

Except this ended up with nothing being displayed in the location. How would I display the postbit_customrep inside postbit_legacy?