derive Semigroup/Monoid/IsList https://github.com/sboosali/derive-monoid#readme
|Latest on Hackage:||0.0.1|
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when your type can hold a list of itself, you can derive simple (but total/lawful) Semigroup/Monoid/IsList instances with TemplateHaskell.
see Derive.Monoid on hackage for examples and documentation.