Yes, this deals with the TT2 stash (it's the same concept as in perl). Sometimes you need to see all the variables available in a particular template. It basically answers this. Initially I solved this by embedding perl (which is bad) like so

[% PERL %]
    use Data::Dumper;
    local $Data::Dumper::Indent = 1;
    print "THE STASH", Data::Dumper::Dumper($stash);
[% END %]
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