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afsalthaj/block2.scala Secret

Last active July 11, 2018 01:15
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block2.scala
trait Functor[F[_]] { self =>
def map[A, B](fa: F[A], f: A => B): F[B]
def xmap[A, B](fa: F[A], f: A => B, g: B => A) =
map(fa, f)
}
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