@type t() :: %Rapyd.Types.Customer{
  birth_country: String.t() | nil,
  business_vat_id: String.t() | nil,
  created_at: integer(),
  date_of_birth: String.t() | nil,
  default_payment_method: String.t() | nil,
  discount: map() | nil,
  email: String.t() | nil,
  ewallet: String.t() | nil,
  id: String.t(),
  invoice_prefix: String.t() | nil,
  metadata: map() | nil,
  name: String.t() | nil,
  nationality: String.t() | nil,
  occupation: String.t() | nil,
  payment_methods: map() | nil,
  phone_number: String.t() | nil,
  subscriptions: map() | nil
}