Heuristic for Pod vs. Perl

.pod files classified as Pod if they contain any Pod syntax

samples/Perl/Sample.pod

@@ -0,0 +1,10 @@
+use strict;
+use warnings;
+package DZT::Sample;
+
+sub return_arrayref_of_values_passed {
+  my $invocant = shift;
+  return \@_;
+}
+
+1;