I thought this example:

use IO::All;

io->catdir('my','dir','my_file.txt')->backwards 
> 
io->catdir('my','dir','reversed.txt');
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was wrong until i read the IO::All documentation and found out that the ">" operator is overloaded by IO::All. You might write it more suggestively by saying:

io->catdir('my','dir','my_file.txt')->backwards > io->catdir('my','dir
+','reversed.txt');
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