@type params() :: map()

@type t() :: %ExOAPI.Stripe.Schemas.SourceTypeSofort{
  bank_code: String.t() | nil,
  bank_name: String.t() | nil,
  bic: String.t() | nil,
  country: String.t() | nil,
  iban_last4: String.t() | nil,
  preferred_language: String.t() | nil,
  statement_descriptor: String.t() | nil
}