Tagless final with MonadError

TaglessMonadError.scala

import cats._
import cats.implicits._

def loadResult[F[_]](implicit F: MonadError[F, Throwable]): F[String] = {
  val resultEitherF: F[Either[Throwable, String]] =  ???
  val resultF: F[String] =  resultEitherF.flatMap(F.fromEither)
  resultF.recoverWith{
    case error => F.pure(error.getMessage)
  }
}

TaglessMonadError2.scala

type Throwing[F[_]] = cats.MonadError[F, Throwable]

def loadResult[F[_] : Throwing]: F[String] = {
  val resultEitherF: F[Either[Throwable, String]] =  ???
  val resultF: F[String] =  resultEitherF.flatMap(MonadError[F, Throwable].fromEither)
  resultF.recoverWith{
    case error => MonadError[F, Throwable].pure(error.getMessage)
  }
}