fix enzomotta/coders.example#31
fix enzomotta/coders.example#32
fix enzomotta/coders.example#33
fix enzomotta/coders.example#34
fix enzomotta/coders.example#35
fix enzomotta/coders.example#36
fix enzomotta/coders.example#37
fix enzomotta/coders.example#38
fix enzomotta/coders.example#39
fix enzomotta/coders.example#40