@type t() :: %ExBifrost.Model.OcrResponse{
  document_annotation: String.t() | nil,
  extra_fields: ExBifrost.Model.BifrostResponseExtraFields.t() | nil,
  model: String.t(),
  pages: [ExBifrost.Model.OcrPage.t()],
  usage_info: ExBifrost.Model.OcrUsageInfo.t() | nil
}