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  1. or download this
    our @x;
sub foo {
...
  return @x;
}
pop foo();
  2. or download this
    Type of arg 1 to pop must be array (not subroutine entry) at Monks/Sni
+ppet.pm line 7, near ");"
Execution of Monks/Snippet.pm aborted due to compilation errors.
  3. or download this
    Type of arg 1 to push must be array (not subroutine entry) at Monks/Sn
+ippet.pm line 7, near "4;"
Execution of Monks/Snippet.pm aborted due to compilation errors.