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- /macros/README.md: Typo "modules" => "macros" - iterators2.py: Reduce line length to <90-char width. - iterators4.py: Update 'fun' => 'challenge' as per PR#177 - rustlings hint iterators4: improve clarity
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Macros
Rust's macro system is very powerful, but also kind of difficult to wrap your head around. We're not going to teach you how to write your own fully-featured macros. Instead, we'll show you how to use and create them.