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  1. or download this
    use strict;
use warnings;
...
    say "\@$symname array is populated" if @{ *sym }; # <-- HERE
    say "\%$symname hash  is populated" if %{ *sym }; # <-- and HERE
}
  2. or download this
    %CORE:: hash  is populated
%Carp:: hash  is populated
...
%utf8:: hash  is populated
%version:: hash  is populated
%warnings:: hash  is populated
  3. or download this
    use strict;
use warnings;
...
        }
    }
}