Nested parameters.
Summary
Types
@type t() :: %Stripe.Params.ShippingRateUpdateParams.FixedAmount{ currency_options: %{ required(String.t()) => Stripe.Params.ShippingRateUpdateParams.FixedAmount.CurrencyOptions.t() } | nil }
currency_options- Shipping rates defined in each available currency option. Each key must be a three-letter ISO currency code and a supported currency.