@type t() :: %Ory.Model.Subscription{
  created_at: DateTime.t(),
  current_plan: String.t(),
  customer_id: String.t(),
  id: String.t(),
  ongoing_stripe_checkout_id: String.t() | nil,
  payed_until: DateTime.t(),
  plan_changes_at: DateTime.t() | nil,
  plan_changes_to: Ory.Model.NullPlan.t(),
  status: String.t(),
  updated_at: DateTime.t()
}