t() :: %AdyenCheckoutEx.Model.PaymentMethodsRequest{
  additionalData: %{optional(String.t()) => String.t()} | nil,
  allowedPaymentMethods: [String.t()] | nil,
  amount: AdyenCheckoutEx.Model.Amount.t() | nil,
  blockedPaymentMethods: [String.t()] | nil,
  channel: String.t() | nil,
  countryCode: String.t() | nil,
  merchantAccount: String.t(),
  order: AdyenCheckoutEx.Model.CheckoutOrder.t() | nil,
  shopperLocale: String.t() | nil,
  shopperReference: String.t() | nil,
  splitCardFundingSources: boolean() | nil,
  store: String.t() | nil
}