bash-5.1$ perl  pm11149136.pl 
$bar (an imported 'package' variable)=42
$bar (accessed explicitly via package name $FOO::bar)=42
$bar (accessed explicitly via package name $FOO::bar after setting via imported var)=Set via caller
Use of uninitialized value $baz in say at pm11149136.pl line 11.
$baz (direct attempt to access package 'my` variable)=
BAZ via getter/setter=66
BAZ get after setting to 55=55