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  1. or download this
    use Foo;
    package Foo;
    ...
    }
    package resume_former_namespace;
    ...
    
  2. or download this
    
    #!/usr/bin/perl
    ...
    
    print "   ::Orig: ", foo(), $/;
    
  3. or download this
    package Foo;
    use Exporter;
    ...
    
    1;
    
  4. or download this
    Foo::Ridden: I'm overridden foo
    Foo::Ridden: I'm overridden foobar
       ::Ridden: I'm foo
       ::Orig: I'm foo
    
  5. or download this
    Foo::Ridden: I'm foo
    Foo::Ridden: I'm foobar
       ::Ridden: I'm overridden foo
       ::Orig: I'm foo