title: Finding dead code in Template toolkit
body: <p>We have a number of interconnected tt's in our project. Is there a way to find template code which is never used? </p>
  
  <p>At least in theory, I could hack into Template, make it mark control blocks somehow and write usage data to a file for later analysis (much like Devel::Cover does). But maybe there's already a tool for that? I haven't found one though.</p>
  
  <p>Here's a useful <a href="http://blogs.perl.org/users/ovid/2014/07/finding-unused-variables-in-your-template-stash.html" rel="nofollow">post</a> on this topic but not quite what I want. </p>