@type t() :: %Sendio.Templates.Template{
  created_at: DateTime.t() | nil,
  from: String.t() | nil,
  html: String.t() | nil,
  id: String.t(),
  name: String.t() | nil,
  subject: String.t() | nil,
  text: String.t() | nil,
  updated_at: DateTime.t() | nil
}