Merging many Future[Seq] into one Future[Seq]

Merging many Future[Seq].sc

import scala.concurrent.ExecutionContext.Implicits.global
case class Error(name:String)
type Errors = Seq[Error]

trait getErrors {
  def errors(): Future[Errors]
}

class Validation
object TypeValidation extends Validation with getErrors {
  def errors() =
    Future(Seq(Error("o1e1"), Error("o1e2"), Error("o1e3")))
}

object LengthValidation extends Validation with getErrors {
  def errors() =
    Future(Seq(Error("o2e1"), Error("o2e2")))
}

val validations = Seq(TypeValidation, LengthValidation)

val errors: Future[Errors] = Future.sequence(
  validations.map(_.errors())
).map(_.flatten)


errors.value.get