case classNodeMetaOpt[T <: AstNode](node: Option[T], warnings: Vector[Warning] = Vector.empty) extends NodeMetaBase[Option[T]] with Product with Serializable
case classNodeMetaSeq[T <: AstNode](node: Seq[T], warnings: Vector[Warning] = Vector.empty) extends NodeMetaBase[Seq[T]] with Product with Serializable