@type t() :: %Docspring.Model.HtmlEngineOptions{
  format: Docspring.Model.PageFormat.t(),
  height: String.t() | nil,
  landscape: boolean(),
  margin_bottom: String.t(),
  margin_left: String.t(),
  margin_right: String.t(),
  margin_top: String.t(),
  print_background: boolean(),
  scale: number(),
  width: String.t() | nil
}