/// Use the `NodeBuilder` for generating an abstract.
public struct Abstract: NodeRepresentable {
  @usableFromInline
  let label: any NodeRepresentable

  @inlinable
  public init(@NodeBuilder label: () -> any NodeRepresentable) {
    self.label = label()
  }

  @inlinable
  public func render() -> String {
    label.render()
  }

}