Automatic generation of record lenses for microlens

 This package lets you automatically generate lenses for data types; code was
 extracted from the lens package, and therefore generated lenses are fully
 compatible with ones generated by lens (and can be used both from lens and
 microlens).
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 This package is a part of the microlens family.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.