@type t() :: %DocuSign.Model.RecipientPreviewRequest{
  assertionId: String.t() | nil,
  authenticationInstant: String.t() | nil,
  authenticationMethod: String.t() | nil,
  clientURLs: DocuSign.Model.RecipientTokenClientUrls.t() | nil,
  pingFrequency: String.t() | nil,
  pingUrl: String.t() | nil,
  recipientId: String.t() | nil,
  returnUrl: String.t() | nil,
  securityDomain: String.t() | nil,
  xFrameOptions: String.t() | nil,
  xFrameOptionsAllowFromUrl: String.t() | nil
}