implicitView.scala

import cats.Monad
import cats.implicits._

/*
Interesting to note that if the parametic type is F[A] and your function is expecting F[F[A]]
Then the implicit function as used in the below function works like a charm
It tells scala compiler to use F[F[A]] the implicit is provided by scala itself you don't need to implement
*/

implicit class SomeOps[F[_], A](v:F[A]){
  def myflatten[B](implicit M:Monad[F], view: F[A] => F[F[B]]): F[B] = M.flatten(view(v))
}

println(Option(Option(3)).myflatten)