polymorphic function & type alias - compilation error

example.scala

package object example {
	type ElasticSearchIndexation[X] = X => Future[Try[String]]
	type DatabaseInsertion[Z] = Z => Future[Option[Z]]

	def saveAndIndex[A](g: A => Future[Try[String]])(f: A => Future[Option[A]])(x: A): OptionT[Future, Try[String]] = ???
	
	def saveAndIndexAlias[A](g: ElasticSearchIndexation[A])(f: DatabaseInsertion[A])(x: A): OptionT[Future, Try[String]] = ???  
}

Test.scala

object Test {
    val toto: Toto = ???
    val indexTotoInES: Toto => Future[Try[String]] = ???
    val insertToto: Toto => Future[Option[Toto]]  = ???
    
    toto |> saveAndIndex(indexTotoInES)(insertToto)         // compile OK
    
    toto |> saveAndIndexAlias(indexTotoInES)(insertToto)    // Don't compile with errors :
    
    /**
     * type mismatch;
    [error]  found   : Toto => scala.concurrent.Future[scala.util.Try[String]]
    [error]  required: example.ElasticSearchIndexation[A]
    [error]     (which expands to)  A => scala.concurrent.Future[scala.util.Try[String]]
    [error] 	toto |> saveAndIndexAlias(indexTotoInES)(insertToto)
     * 
     ** /
     
}

out of curiosity does
toto |> saveAndIndexAlias[Toto](indexTotoInES)(insertToto)
compile ?