Well this is somewhat poor style, but you could say something like:
options => defined($hashref->{'options'}) || []
How about a nice map though that only pulls out the defined elements in your hash?
map { defined $hash->{$_} ? ($_ => $hash->{$_}) : () } keys %$hash;
The output then can be fed directly into param. This is limited too in that it assumes your hashkeys are identical to your fields (TMPL_VARS), but if you can live with that assumption it might work for you.
HTH
"The dead do not recognize context" -- Kai, Lexx
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