@type t() :: %MailSlurpAPI.Model.SendWithQueueResult{
  createdAt: DateTime.t(),
  delivered: boolean(),
  exceptionName: String.t() | nil,
  headerId: String.t(),
  id: String.t(),
  inboxId: String.t() | nil,
  message: String.t() | nil,
  subject: String.t() | nil,
  updatedAt: DateTime.t(),
  userId: String.t()
}