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  1. or download this
    use strict;
    use warnings;
    
    ...
    package Foo;
    use Try::Tiny;
    use my_feature "try";
    
  2. or download this
    perl /home/lanx/perl/pm/check_stash_sub.pl
    Warning: Foo::try() will be shadowed by feature 'try' at /home/lanx/pe
    +rl/pm/check_stash_sub.pl line 23.
    Warning: Foo::catch() will be shadowed by feature 'try' at /home/lanx/
    +perl/pm/check_stash_sub.pl line 23.
    Warning: Foo::finally() will be shadowed by feature 'try' at /home/lan
    +x/perl/pm/check_stash_sub.pl line 23.